Slangora

grease monkey

(idiomatic, slang) A mechanic, often with the specific connotation of an automobile mechanic.

ˈɡɹis ˈmʌŋkiDocumented since 1910s1910sSilenthistoricalCurrent226 viewsLast reviewed Jun 29, 2026+ Add a definition
🗺️ Regional & Other
1 definition
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Etymology timeline

Born ~1910 · 1 year of recorded use
1910Born2026: 2 citationsToday, 2026

Seen in the wild

Definitions

#1·Apr 27, 2026

(idiomatic, slang) A mechanic, often with the specific connotation of an automobile mechanic.

See it in action
  • “Hans Blix confirmed there were no WMDs and that they were likely destroyed in 1991. Sad attempt at an appeal to authority - your time as a grease monkey/cook/driver in the RAF does not give you any expertise in the politics of supporting genocide.”

If you appear like a tramp or grease-monkey how can you expect to meet the people who are able to support your business.
Origin: First use appears c. 1910 in a translated work. See cite below. May have originated during the Industrial Revolution in Great Britain, when children were used to grease the large rotating axles which were used to transfer power from one centralized steam engine to all of the machines on the factory floor. These children, covered in grease and crawling in the tight spaces in the ceilings, were equated with monkeys. Origin information sourced from Wiktionary contributors (CC BY-SA 4.0).
For parents

"grease monkey" means: A mechanic, often with the specific connotation of an automobile mechanic.. This is informal slang, common in casual speech, texting and social media, but not appropriate for school work, applications or professional settings. There is no real cause for concern in itself; it is everyday peer vocabulary. If your child uses it, a light comment about audience and register is usually enough — no need to escalate. Context, more than the word, tells you whether to follow up.

For ESL learners

"grease monkey" means: A mechanic, often with the specific connotation of an automobile mechanic.. Register: informal slang, fine in casual conversation, texting and social media but not in academic essays, business writing or formal speech. A common non-native mistake is to use the word in the wrong register, or to assume one fixed meaning when it is actually polysemous; always check the surrounding register and the audience before producing it yourself. In formal writing, prefer a neutral synonym or a short descriptive phrase, and use this word only when you have heard or read it being used naturally in a comparable context.

Heard in the wild
  • “So you were a grease monkey. Hahaha 🤣 good guess.”

    — Bluesky· May 2026
  • “Hans Blix confirmed there were no WMDs and that they were likely destroyed in 1991. Sad attempt at an appeal to authority - your time as a grease monkey/cook/driver in the RAF does not give you any expertise in the politics of supporting genocide.”

    — Bluesky· May 2026
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For specific readers

"grease monkey" means: A mechanic, often with the specific connotation of an automobile mechanic.. This is informal slang, common in casual speech, texting and social media, but not appropriate for school work, applications or professional settings. There is no real cause for concern in itself; it is everyday peer vocabulary. If your child uses it, a light comment about audience and register is usually enough — no need to escalate. Context, more than the word, tells you 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.

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