STfuCKu

A combo of STFU (Shut The Fuck Up) FU (Fuck You) and FUCKu.... (Fuck You)
Used to tell one person all these things without typing them all....

Larry: Dude! I can't believe your girlfriend dumped you!
Gary: Dude why don't you STfuCKu!

by kittiesrule July 8, 2009