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1.
A female cadet at West Point. When women first came to the academy, the way their hips looked in the men's uniforms was a point of ridicule, so they started to be called trousers, or trou. Also see: trou bucket.
She is total trou, man, stay away from that.
by CDT Dong Fizzle 2 April 15, 2006
 
2.
Like trousers, except trou. Can also be used for an action.
To take a shit, you need to drop trou.


I'm gonna trou around over here.
by Maerk May 26, 2005
 
3.
Underwear worn by a male; can be tighty whiteys, boxers, briefs, whatever.
Anne was looking forward to going down on Bob, but got so grossed out when she found he was wearing "Home of the Whopper" trou that she kicked his ass out the door.

"Dude, those are some pretty fey looking trou you're wearing there."
by john-o-rama June 13, 2006