A person who frequently behaves and converses in a bizarre and disinhibited manner
'It was all fine. Then Dudley suddenly started chatting shit with this old guy, and then tried to fuck a tree. I swear he's an absolute chainsaw'
by T. Farmer October 26, 2007
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To ruin something. Accidental or not.
Our party got Chainsawed by those assholes who through up in the sink.

The bands show was Chainsawed when the drummer got wasted and passed out on the drums.
by Not You Too September 5, 2009
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what you use to cut off someones head and other body parts.
Jesse, where's my chainsaw? I need to cut this bitch up and get rid of the evidence.
by wackoo April 15, 2007
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The act of rubbing your braces while performing cunnilingus. Noises optional.
I chainsawed that bitch and she screamed for hours!

When Tommy chainsawed Suzie she cried, and Tommy had bits of clitoris flesh in his braces for a week.
by kittymuffin September 21, 2007
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A power tool designed to efficiently cut trees by means of a motorized chain with serrated edges, hence the term chainsaw. Chainsaws usually consist of a two-stroke gasoline engine, but with electric power being more commonplace, some chainsaw brands are electric-powered. However, in popular culture, the chainsaw has gained notoriety as a potential weapon or an instrument of torture and/or gruesome murder, most famously in the movies Texas Chainsaw Massacre, Hostel, and Scarface. The chainsaw has also been featured in video games such as Doom 3 and Resident Evil 4, where it has become an icon.
In Resident Evil 4, the player can be gruesomely decapitated by Doctor Salvador or The Bella Sisters, the main chainsaw-wielding enemies of the game.
by JumboJet Captain September 29, 2006
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a girl with braces on ecstacy who gives u a blowjob, but she gurns on your cock at the same time.
dude 1: Oh man, last night my girlfriend chainsawed me.... i was bleeding for hours.

dude 2: aahhh, man!... what a bitch. Slap that monkey!
by mildexlark April 8, 2008
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The BEST weapon ever! Itl scare the shit outta ANYONE and it is WAY better than a shitty stiletto or switchblade. Too bad its not that portable...
The best part of Scarface was the scene where they were hacking up that gagged guy with the chainsaw in the washroom!
Gangsta Wigger- Hey Bitch! Gimme yo greens o il cut you up with my 5 inch switchblade!

Me - Oh yeah? (pulls out chainsaw, laughs as the gangsta wigger shits himself, tears the bloody fuck out of him)
by Heeheheh April 11, 2005
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