A teenager going through the tough times of puberty that begins to create a thick layer of grease upon ones face
Kevin: Mike, did you hear Nunzio is becoming a grease monkey?

Mike: My older brother just went through that, it's discusting!
by KKKillyourself December 17, 2013
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An unlicensed or on-the-side mechanic that you go to when you can't afford to go to a real mechanic. Often used when the job is simple, or you no longer want to dump money into your very old car.
Can also be applied to a halfway knowledgable person in any field (ie: computer repairs, home repairs, gender reassignment)
"I took my car to this grease monkey I know and he screwed up my tranny. That'll teach me to stop being cheap."
by Bionic Latino August 28, 2008
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Someone who deliberately does not wash their hair reguarly and is regarded by others as a greasy skett. Hair smells and dandruff flakes are apparent they are not pleasent to look at.
Emma Staunton

"Go grease lightning"

"You' ve got enough grease on top to open up a chip shop!!"

"Err have you seen that Grease Monkey over there!? She wants to go get that hair of hers checked out by the Grease Police!"
by Susan Windridge February 20, 2009
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operator of mechanical equipment,usually on a construction site
Diesel powered cement mixer:
Small and large dumpers;
Various other equipment
by Michael December 15, 2003
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a smooth suave sophisticated kid with greasy hair
charles:Did you here about that kid george
jack:yeah i heard he's a total grease monkey
by gcrocker April 29, 2011
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The kid at school who never bathes. This causes his/her hair to have plenty of attractive grease in it.
"Did you see Todd today?"
"Holy shit, yeah. That kid is a total grease monkey."
by cacacarrottop August 27, 2008
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1. Someone who has bits of food, grease, etc. in their facial hair or normal hair.

2. Someone who loves working on cars.
1.
George: Man, John never puts a hairnet on when using the deep fat frier. What a grease monkey.

2.
Josh: All that that grease monkey Joel does all day is work on cars.
by The Anonymous Corporation April 29, 2010
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