Slangora

bullshido

(slang, derogatory) Martial arts fraud, especially exaggerated or fraudulent claims regarding the biography, lineage, skills or experience of martial arts instructors.

ˈbʊlʃiˌdoʊDocumented since 1990s1990sMillennialhistorical119 viewsLast reviewed Jun 29, 2026+ Add a definition
⚡ Tech, Dev & AI
1 definition
Community

Etymology timeline

Born ~1996 · no dated citations yet
1996BornToday, 2026
Millennial / early-internet eraSee decade cohort →

Definitions

USAvoid at work
#1·Apr 26, 2026US

(slang, derogatory) Martial arts fraud, especially exaggerated or fraudulent claims regarding the biography, lineage, skills or experience of martial arts instructors.

We understand the spirit of Bushido better than anyone. Or was that Bullshido?
Origin: . Attested from 1996, and popularized by the bullshido.net website from 2002. Origin information sourced from Wiktionary contributors (CC BY-SA 4.0).
For parents

Bullshido means: Martial arts fraud, especially exaggerated or fraudulent claims regarding the biography, lineage, skills or experience of martial arts instructors.. It is informal slang, fine in casual speech but not suited to formal contexts. It is generally derogatory or offensive; worth a quiet word about how it lands on the person being described. 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 ESL learners

bullshido means: Martial arts fraud, especially exaggerated or fraudulent claims regarding the biography, lineage, skills or experience of martial arts instructors.. 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.

Was this helpful?

Comments

For specific readers

Bullshido means: Martial arts fraud, especially exaggerated or fraudulent claims regarding the biography, lineage, skills or experience of martial arts instructors.. It is informal slang, fine in casual speech but not suited to formal contexts. It is generally derogatory or offensive; worth a quiet word about how it lands on the person being described. 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.

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

US

Have a better definition?

Add your own interpretation of "bullshido".

Add definition

⚡About Tech, Dev & AI slang

The vocabulary of software engineers, AI researchers, and anyone living in a terminal or on GitHub — from LLM to MCP, CORS to vibe coding, agentic to enshittification.

See all Tech, Dev & AI slang on Slangora.

Tags

Other words near "bullshido" (B)

Browse all slang words starting with B.

Related terms

People also read

Semantically related