Top definition
An object or act of a person that totally unarouses a guy. Someone or something that kills the mood. Something that makes you anti-horny. cockblock buzzkill
Rad: Hey, check out these hot girls on the computer.

K-Dogg: **walks by with buttcrack showing**

Rad: Aw come on dude, you're a boner-be-gone.
by Raditude December 07, 2008
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