Fucking Useless Information. What most emails you receive marked FYI really are.
"I wish he would stop CCing all of us on emails FYI. More like FUI".
by Anton Vettel December 3, 2009
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FUI: Facebook Under the Influence. The act of writing, participating, or using Facebook, or any other social network while intoxicated. The modern extension of drunk dialing.
I never should have messaged he/she last night on Facebook. I was so FUI! Now I'll never get in his/her pants!
by Dr. Basketcase December 16, 2008
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fucking under the influence. having sex while also experiencing the effects of drugs, alcohol, etc. FUI is the 8th deadly sin and is punishable by a 6 month suspension of your fucking license.
Dude I don't remember her at all...I must have been FUI, I don't even remember her name.
by kittybaby7 June 17, 2007
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"floating under the influence"; floating on a tube or raft down a body of water, prefferably a fast moving river, while shitcanned (i.e. wasted or fucked-up on any drugs)
Yesterday, while tubing down the mighty Mississippi, Jimmy got a FUI for being intoxcated while flashing his "down-stairs mixup" to the police; his wasted ass went to jail.
by Justin Ianello February 16, 2008
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on ice age it means fire. these tribal sloths are all engaged in fui fui. :
the fui fui is hott. and it is yellow. and oarnge. and red.
by Sid Sloth April 18, 2008
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