1 definition by iDefineUrrWOrld

When a girl (or man if he's fat) have big boobs and the cleavage looks like a butt crack. Kind of like cleavage.
a.) Karen has a clear view of her huge chest crack.

b.) Dude, Ron really needs to lose some weight or stop wearing low shirts; he has a really gross chest crack.
by iDefineUrrWOrld July 28, 2009
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