Top Definition
The enlargement of a woman's clitoris when engorged with blood due to sexual arousal, i.e., the female equivalent of a boner.
Julie sat at work with a boneesh after several sexual IM conversations with a coworker.

The good thing about a boneesh, as opposed to a boner, is that you can walk around in public without anyone knowing.
by Chia74 July 10, 2008
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