This is slang that originated with American soldiers during World War II. Many US troops were armed with their fully automatic equivalent of the STEN gun, the M3 submachine gun which, because of its resemblance to the mechanic’s tool was called the ‘grease gun’. With the slightly macabre humour prevalent amongst those who are in combat, enemy troops killed by this weapon were referred to as having been ‘greased’.
It quickly came to mean killed by multiple bullet wounds from any type of machine gun. It was during the Vietnam War, however, that its use expanded and increased quite dramatically until it became used to describe any death in action against the enemy.
There is now some evidence to suggest that the word greased is being used to describe any violent death, even where this is not in combat and when it may even be an accident.
“Tommy got greased yesterday! Fucking great pallet of bricks fell on him at the building site!”
by AKACroatalin October 17, 2016
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When you are in a situation that is unfortunate, hard to get out of, or a situation when you are taken advantage of. Exactly the same as getting screwed, shafted, or fucked over. This term is more popular in Canada than the United States.

Related to: Greasy, Greasing, Grease
Person 1: "Hey man I just talked to that guy from the car dealership, and he said I can't have my deposit back"

Person 2: "Yeah man, sounds like he Greased you"
by BillyDaYak September 2, 2018
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To be greased means to be killed. Originally it meant to be killed by multiple bullet wounds from a weapon fired on full automatic but gradually its use extended, particularly during the Vietnam War, until it was used to describe any death caused by enemy action.

The expression originated from American troops of the Second World War who were armed with the M3 submachine gun. Since the M3's nickname was 'grease gun', supposedly from its resemblance to the mechanics tool, enemy troops killed by the M3 were soon referred to as having been greased.
Had some luck out in the boonies today!
How's that?
Nine of Uncle Ho's finest goofin' off in a waterhole, twelve M16s greased their asses real good!
Number One!
by Croatalin November 19, 2013
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You know dat bih tameka i just greased ha shit the other day
by Mr kfn April 8, 2021
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When you give someone a large amount of money to keep their filthy mouth shut OR to get them to do what you want
1. Pauly (paul) D met the Mayor. The Mayor was planning on shutting down our racket but we greased that motherfucker to keep his mouth fucking shut!!

2. " did you grease him"

... "no boss i forgot"

" I always told you to grease these motherfuckers!"
by Philly Steak December 25, 2014
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Said of a woman someone has recently had sex with. Where all the sexual juices that are produced are called grease. For example vigina fluid and semen ect.
by Deep blue 2012 June 21, 2010
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(1) when one becomes so intoxicated they cannot function properly. (2) When an individual is not feeling well, usually alcohol related, as in hung-over. (3) The act of getting heavily intoxicated
"I fell so greased!!"
"Let's get greased!"
by Thomas Hammer February 5, 2010
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