2 definition by BobbyTheBox

Top Definition
A slang term for the semen that pools in the small of a woman's back.
Dude, I was bonin' Angela from behind last night and when I was about to cum I pulled out, blew my load on her back and gave her a casura bay!!!
by BobbyTheBox September 26, 2007

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A slang term for the semen that pools in the small of a woman's back.
Dude, I was bonin' Angela from behind last night and when I was about to cum I pulled out, blew my load on her back and gave her a casura bay!!!
by BobbyTheBox September 12, 2007

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Buy a Casura Bay mug!