Mermaidcore is a 2023 fashion aesthetic of shimmery fabrics, sea-green tones, shell jewellery, inspired by The Little Mermaid live-action film. Not concerning, just fashion. If your kid uses it constantly, ask them where they first heard it, not to police their speech but to understand which online community they are in. Most slang of this kind moves through TikTok and group chats, so seeing it in your child's vocabulary just means they are plugged into normal teen internet culture.
mermaidcore
Iridescent fabrics, scale patterns, sea-blue palettes, shell jewelry.
/ˈmɜːr.meɪd.kɔːr/Coined ~20222020sGen AlphatrendingHistorical372 viewsLast reviewed Jun 29, 2026＋ Add a definition
Etymology timeline
Born ~2022 · 2 years of recorded useSeen in the wild
Firecrawl: The Little Mermaid review – Halle Bailey goes full mermaidcore in ...May 2023
Bailey is both the finished film’s only unmitigated triumph and the best argument for this whole live action remake enterprise in one shimmering mermaidcore package.
View source
Firecrawl: From minimalist to menocore! The 21 biggest style tribes of 2021Sep 2021
The 21 biggest style tribes of 2021 This article is more than 4 years old Can’t tell your angelcore from your mermaidcore?
View source
Definitions
Global
+489100%
#1·Apr 24, 2026Global
Iridescent fabrics, scale patterns, sea-blue palettes, shell jewelry. Peaked summer 2023 riding the Little Mermaid remake. The aesthetic is deeply committed: pearl hair clips, shell-bead chokers, makeup with iridescent pigment, bags shaped like waves. Half Halloween, half Zara Spring.
See it in action
“Bailey is both the finished film’s only unmitigated triumph and the best argument for this whole live action remake enterprise in one shimmering mermaidcore package.”
"Full mermaidcore for the beach club — pearl hair clips and a shell bra."
Origin: Emerged 2022–2023; amplified by the 2023 Little Mermaid film.
For parents
Mermaidcore is a 2023 fashion aesthetic of shimmery fabrics, sea-green tones, shell jewellery, inspired by The Little Mermaid live-action film. Not concerning, just fashion. If your kid uses it constantly, ask them where they first heard it, not to police their speech but to understand which online community they are in. Most slang of this kind moves through TikTok and group chats, so seeing it in your child's vocabulary just means they are plugged into normal teen internet culture.
For ESL learners
Mermaidcore is a 2023 fashion-aesthetic compound describing styling inspired by mermaid imagery: iridescent fabrics, blues and greens, shell accessories. Use in fashion writing. Formal equivalent: "mermaid-inspired aesthetic." Common non-native mistake: associating it exclusively with swimwear. Mermaidcore extends to general fashion, makeup, and decor. Read or listen to the word in context several times before trying it yourself; the right register is harder to learn than the dictionary meaning.
Cluster: sad
Heard in the wild
“Bailey is both the finished film’s only unmitigated triumph and the best argument for this whole live action remake enterprise in one shimmering mermaidcore package.”
“The 21 biggest style tribes of 2021 This article is more than 4 years old Can’t tell your angelcore from your mermaidcore?”
Was this helpful?
Comments
Show 1 more dictionary-style sense (imported)
Global
#2·May 2, 2026Global
An aesthetic focusing on imagery and fashion related to mermaids.
Source: Wiktionary (CC BY-SA 4.0)
Was this helpful?
Comments
For specific readers
Why is this section here?
Slang is read by different audiences for very different reasons. The For parents view re-explains the term in plain, non-judgemental language so a caregiver can understand what their child means without needing the surrounding subculture. The For English learners view focuses on register (when it's safe to use), formal alternatives, and common mistakes — what a textbook won't teach you.
Used in
Global
Have a better definition?
Add your own interpretation of "mermaidcore".
👗About Fashion & Lifestyle slang
The aesthetic vocabulary of how people dress now — quiet luxury, coquette, mob wife, coastal grandmother, Y2K core, and every "-core" that came after.
See all Fashion & Lifestyle slang on Slangora.
Tags
Other words near "mermaidcore" (M)
MercyMeredithmeresmanmerit badgemerit badge universitymerit badgingmermaidcore arcmermaidcore checkmermaidcore codedmermaidcore energymermaidcore failmermaidcore god
Browse all slang words starting with M.
Related terms
People also read
Semantically related
- mermaidcore szn79%
That glorious stretch of the calendar — roughly late spring through summer — when ocean-inspired fashion fully takes over. During mermaidcore szn, iridescent fabrics fly off shelves, shell jewelry goes unavoidable, and everyone's hair is suddenly wavy and sea-salted. It's less a date on the calendar and more a collective vibe shift: the moment the aesthetic stops being a niche Pinterest board and becomes the default setting for beach content, festival fits, and every brand's summer lookbook.
- low key mermaidcore77%
A subtle, understated take on mermaidcore that hints at the aesthetic without going full sea-creature maximalism — maybe just a single opalescent ring, a soft blue-green palette, or hair with the slightest ocean wave to it. Low key mermaidcore is for people who identify with the vibe but prefer their aesthetics quiet. It's the difference between a statement fin skirt and a pair of delicate shell drop earrings that only the discerning will clock.
- mermaidcore check77%
A call to verify whether an outfit, space, or vibe authentically qualifies as mermaidcore — the oceanic-inspired aesthetic defined by iridescent fabrics, sea-glass colors, flowing silhouettes, and deeply fantasy-coastal energy. A mermaidcore check puts the look under scrutiny: Is the shimmer giving deep sea or is it giving discount Halloween? Are the blues and greens giving actual bioluminescence, or are they giving dollar store? Used in fashion communities and TikTok fit checks to evaluate aesthetic authenticity before crowning something truly mermaidcore.
- mermaidcore maxxing76%
Going to the absolute extreme limit of mermaidcore aesthetics — no half-measures, no subtle hints, just full oceanic maximalism turned up to eleven. Mermaidcore maxxing means you've gone beyond iridescent tops into full fin-shaped skirts, bioluminescent body glitter as a daily look, and hair that requires literal seaweed-extract treatments. It's aspirational and slightly unhinged in the best possible way, beloved by the aesthetic community for its committed energy.