Top definition
An acronym which stands for Face booking under intoxication.
Did you see that booze hound on Face book? It's obvious that she's drunk and she's not even 21. She's gonna get a F.B.U.I. one day.
by F.B.U.I. March 27, 2010
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Cleveland Steamer Plush

The vengeful act of crapping on a lover's chest while they sleep.

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2
(Name) wrote on your wall: "LOVE YOU I"MSLOW{GNI NG GN"IGHT!!!!"

FBUI.
by fbui.ithappens December 06, 2008
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Dirty Sanchez Plush

It does not matter how you do it. It's a Fecal Mustache.

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3
My Wife busted me for FBUI. She found my messages to the girlfriend I left last night when hammered..
by Maneuver March 06, 2014
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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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