A thing or a place is so over the top fabulous that it is very cool.
Your new hair do is totaly Fabu.
You must have gone to Fabu to get that do?
by Bradley January 30, 2005
Shortened version of fabulous for those that are snooty and think their sh*t don't stink. It describes something that is really great, and well...fabulous!
(1) Did you see that new Armani sports coat. The design is fabu! (2) Your girlfriend is cool with you straying a bit? She is so fabu!
by AndyZ January 13, 2007
Pronounced Faye-Boo.

Literally means "Fuck a Bitch up"
After getting insulted

Man1- "Time to Fabu!"
by bpyke October 02, 2011
Acronym for Fuck A Bitch Up
Dude, we're gonna FABU tonight!
by Augustine December 09, 2006
A person of sheer perfection and fabulousness. Usually named Ryan, these "fabu" people are just so amazingly awesome that no other words can describe them. In rare occasions, some fabu people are named Lee-Anne...very rare occasions...
Wow! Ryan is soooo fabu.
by daFT Gorman November 05, 2004
Shortened version of fanfuckingtastic.
You just got laid? FABU!
by dementeddodo November 11, 2004

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