F.B.U.I.

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

D.U.F.F

Literally stands for Designated Ugly Fat Friend. This is the bitch who comes out of no where to cockblock you when you are about to get a chick home with you. She is often recognizable by her fat ass, bad hair and sour disposition. Her main goal of the night is to fend off any advances on her friend so she will have company at the diner when she is stuffing her fat face with an omelet and a side of disco fries while she bitches about anyone and everyone. The D.U.F.F can be defeated with a high level wingman, but you will be expected to return the favor; a job not for the faint of heart. A naked D.U.F.F often smells like a box of crayons.

"Dude, I was about to bag this chick, but then her army of D.U.F.F's came out of no where and pulled her away. She must be a Volleyball player!"

"Did you Fuck the chick at the party?"
"No Fuckhead, I got Duffed!"

by LexDimonds July 31, 2009

M.U.F.F.

Acronym for Manditory, Ugly, Fat, Friend....every girl has that one FAT friend that they always hang out with.
This allows the hizat to look even more attractive.

Man that chick is hot...yup, theres the M.U.F.F.

by NUGGAH February 10, 2004

G.U.F.N.

Grounded Until Further Notice

I'm G.U.F.N. because my parents found out about the beer pong tournaments in the basement

by LeahF October 15, 2008

U.F.O.

The sexual act in which a man performs on a woman (preferably someone's mother). First all the lights are turned off for total darkness. Next the man slips a glow-in-the-dark condom over his penis and then begins to float around the dark room ; thus giving the effect of a flying spaceship, or other un-identifided floating object. The woman then is invited to catch such object with whatever she pleases, i.e. her mouth or other orifaces. When the man grows weary of floating around, he then proceeds to crash-land his "ship" into the woman's "Area51" .

"Hey Mitch, I totally U.F.O. 'd your mom last night ! "

"She always loves when I crash my U.F.O. in her. "

by Matty58 March 26, 2008

D.U.F.F.

Designated Ugly Fat Friend---Usually hangs around extremely Hot girls and DUFF's usually tend to be girls themselves

Bruh do u see dat D.U.F.F. hangin wit Jennifer

by WM-Dawg March 27, 2008

D.U.F.F.

1. Dumb Ugly Fat Fuck
2. Designated Ugly Fat Friend (the less harsh defintion)

That we-gotta-go-girl is such a D.U.F.F.

by cchriss92 August 3, 2007