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grease-monkey 

most dirtiest, greasiet , nastiest person you know
that cretin is such a grease-monkey
grease-monkey by ci4r4L0L November 28, 2020

grease monkey 

mechanic, or mechanically minded person
I got the grease monkey to fix my car
grease monkey by bobbo June 6, 2003

grease monkey 

grease monkey by Ferg June 30, 2003

grease monkey 

An automotive mechanic.

The word can be derisive or affectionate.
My brother in law is a grease monkey. He repairs Fords, so he always has plenty of work.

Grease Monkey 

A person who works on cars a lot is called a grease monkey because your hands get full of grease. Never thought it was racist because the only people I ever knew called that were white, so I didn't make the connection people make with Monkey being a slur against brown people. Also didn't think it was a put down on blue collar workers (of any race) because those were the only people I knew. It was just descriptive. It could have situational racial or economic negative connotations. Example: some wealthy person tries to put down any person working on their car by calling them a Grease Monkey in a derogatory way...most mechanics take pride in their work and themselves, so that would be confusing, and really only prove the rich guy was a pompous ass who doesn't know how to fix his own car.
My Dad and his brothers were grease monkeys, so I learned how to fix my own car.

grease monkey 

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Brent: he just tossed me a slop grenade
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