A bra. Used to hold a woman's assets (or man's :p?) in place to prevent sagging. Can also be used to give the appearance of larger breasts. See wonderbra.
Dude1: Duuuuude, my new girlfriend is like an F-cup! I'm the luckiest guy in the world!

Dude2: Does she wear a bra?

Dude1: No. Why?

Dude2: Dude, they may be perky now, but down the road those are gonna sag! She may wanna invest in some booby braces.

Dude1: Dude, shut up!
by mikeygoodfella June 20, 2009
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