A person's (usually a female) body. Derived from the frame (chassis) of an automobile. Almost always a positive reference.
Damn, she's got a nice chassis!
by leminyelloblak December 28, 2011
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1. Noun: The female backside. Rumpshaker. Booty. Moneymaker. Ass. Heinie. Rear-end.

2. Noun: A superior hindquarters, usually on a well-proportioned female.
"Check out the chassis on that brunette hottie by the jacuzzi."
by YODA November 22, 2004
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Chassis, usable in any situation. There is no bad time to say "chassis"
by chassismeister November 17, 2011
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A girl or guy with a awesome figure/body

For a girl: a nice curvy and most often thin figure -and if she's tall that's a big plus.

For a guy: sometimes referred to as being "built"; typically some good amount of muscle or full out "ripped"; being tall is a plus too.
That tall blonde that just walked by us had awesome chassy.
by projectandriko July 30, 2009
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What made Irish playwright Sean O'Casey famous with that line: see below -- presumably a misuse of the word chaos.
The whole world's in a state of chassis!
by Johneeeeeeeee May 23, 2008
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i was walkin to the store when i seen this chassi walk by.
by fotweny November 18, 2004
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Chassie means a girl has a nice looking ass. It is slang.
"That girl is Chassie!!"

"Mannnn I want to bang that girl!! She's a Chassie!!"
by darealshit January 31, 2014
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