Booster means: Something that boosts.. It has drug-related associations; worth a calm conversation about which side of the topic your teen is on. If your teen uses it, context will usually make the intent clear. A short, curious question about where they heard it is usually all that is needed to know whether to follow up. For most families this word will pass by without incident; it is more a vocabulary curiosity than a parenting concern.
Seen in the wild
8 citations · last seen May 2026
Seen in the wild
BlueskyMay 2026
2nd dose of my shingles vaccine and spring covid booster done. Now for 3 days of sore arm
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BlueskyMay 2026
Ad: For Sale - Pokemon Mega Evolution Phantasmal Flames Booster Bundle Box 6 Factory sealed #Pokemon #MegaEvolution #PhantasmalFlames
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BlueskyMay 2026
#Renovating this #spring? Do you need a tetanus booster? (You need one every 10 years.) immunize.ca/tetanus #tetanus #VaccinesWork #VaccinesSaveLives #GetImmunized
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BlueskyMay 2026
Ad: For Sale - (VERY HEAVY) 22.50g Pokemon TCG Destined Rivals Booster Pack (SEALED)✅ #PokemonTCG #PokemonCards #BoosterPack
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BlueskyMay 2026
All of your art is seriously incredible <3 a real mood booster!
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Definitions
#1·Apr 26, 2026
Something that boosts.
For parents
Booster means: Something that boosts.. It has drug-related associations; worth a calm conversation about which side of the topic your teen is on. If your teen uses it, context will usually make the intent clear. A short, curious question about where they heard it is usually all that is needed to know whether to follow up. For most families this word will pass by without incident; it is more a vocabulary curiosity than a parenting concern.
For ESL learners
booster means: Something that boosts.. Register: very informal, often derogatory or vulgar. Avoid in formal, business, academic, or polite writing. Even in casual speech the word can offend and is best left out of a learner's active vocabulary. A common learner mistake is using the word in a register it does not fit, or assuming a single global meaning; native speakers immediately notice when slang appears in formal contexts, so always check the surrounding register before producing it yourself.
Cluster: drugs
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#2·Apr 26, 2026
(aerospace) The first stage of a multistage rocket, providing primary or supplemental thrust for liftoff and early flight.
When did you get your last tetanus booster?
Heard in the wild
“Ad: For Sale - Pokemon Mega Evolution Phantasmal Flames Booster Bundle Box 6 Factory sealed #Pokemon #MegaEvolution #PhantasmalFlames”
— Bluesky· May 2026“Ad: For Sale - (VERY HEAVY) 22.50g Pokemon TCG Destined Rivals Booster Pack (SEALED)✅ #PokemonTCG #PokemonCards #BoosterPack”
— Bluesky· May 2026“Alexandra Martin Coach Sportiveà domicile dans les Hauts-de-Seine, les Yvelines et Paris 16. Alexandra Martin Accueil Le coaching Votre coach Avis Blog Contact Le Coaching Sportif Pour qui ? https://www.buzz-my-web.es/le-coaching-sportif-un-booster-de-resultats/”
— Bluesky· May 2026
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#3·Apr 26, 2026
(electrical engineering) A motor-generator set used for voltage regulation in direct current electrical power circuits.
In the September vaccine monitor survey from the Kaiser Family Foundation, 71 percent of unvaccinated respondents said the need for boosters indicated that the vaccines were not working.
Heard in the wild
“2nd dose of my shingles vaccine and spring covid booster done. Now for 3 days of sore arm”
— Bluesky· May 2026“#Renovating this #spring? Do you need a tetanus booster? (You need one every 10 years.) immunize.ca/tetanus #tetanus #VaccinesWork #VaccinesSaveLives #GetImmunized”
— Bluesky· May 2026“All of your art is seriously incredible <3 a real mood booster!”
— Bluesky· May 2026“Ad: For Sale - POKEMON OBSIDIAN FLAMES BOOSTER BOX - NEW & SEALED #Pokemon #PokemonCards #Pokemontcg”
— Bluesky· May 2026“Mystery Booster 2 sold out almost instantly at MagicCon Vegas this year, but something isn't making sense on the secondary market. draftsim.com/mtg-mystery-...”
— Bluesky· May 2026
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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.
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🎮About Gaming slang
Gaming slang across genres — from OP, nerf, and buff to carry, clutch, jungle, and wombo combo. The lingo of esports, streamers, and ranked lobbies everywhere.
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