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The art of drawing upon a friend, with a permanent marker, who has passed out from excess alcohol consumption. Rude words and male genitalia pointing towards the mouth are frequently used.

Funbo is derived from an incomplete spelling of the word Funboy upon the forehead.

The only rule is that you may not funbo someone you currently live with. All outsiders are fair game.
We had to funbo whoever passed out first.
by Dahlia Street January 23, 2007
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Word used to describe a person that is fun but is also a bimbo. Funbos make everything funner.
Anna seems like a cool chic, go tell that funbo she is invited to my party tonight.
by Nenamach April 09, 2017
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