look up any word, like bae:
 
1.
A chinese restaurant located in SF.
Dude: Hey! Fuk U?

Badass goodlooking piece of a hot woman: Fuck off! *Smack*

Dude: *wraf*
by Fessus Fessheim August 09, 2006
 
2.
Can typically start any internet rebuttal (There are exceptions, usually based on common sense) and sometimes ends with 'Also, Penis.' for an attempted humorous twist.
InternetGuy1: hay u faggt
internatsdood23: fuk u.
internatsdood23: Also, Penis.
by Raggs July 31, 2008
 
3.
Japanese school girl uniform popular in cosplay.
You are WAY to old to go in a fuku.
by Ash1231231231232123 February 19, 2011
 
4.
A way to say, "Fuck You" to a higher authority without getting in trouble.
Teacher: Mr. Mayer, why didn't you do your home work
Mayer: I didn't have enough time mam
Teacher: That's not a good excuse
Mayer: Fuku lady!
by AchilliesHero05 August 28, 2006