Top Definition
a 30 year old lesbian often mistaken to be a 13 year boy because both are usually sporting the Justin Bieber haircut.
as i stopped what i thought was a boy walking into the girl's bathroom, i quickly realized it was boysbian because of the poorly taped down boobies
by omahabartender September 21, 2010

The Urban Dictionary Mug

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

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The Urban Dictionary Mug

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The Urban Dictionary T-Shirt

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