fo shizz

much like "for real", showing you are serious about something with a little less seriousness.
"So you're serious? Green Day's on tour again?"

"Dude, i am fo shizz"
by littleorphanpunk February 11, 2008
mugGet the fo shizzmug.

fo shizz up the spout

means definitely pregnant...seen in the new box office hit "Juno"
...In the flim, Juno says "this isn't a food baby i am fo shizz up the spout.
by D.J. III February 01, 2008
mugGet the fo shizz up the spoutmug.

slack dogg fo shizz

Origin: Old Ghettish
A word used by lads to say that something is unfair.
Lad 1: I lost 60 cents from the World Stock Market Crash.

Lad 2: Life is so slack dogg fo shizz
by Jack De March 02, 2009
mugGet the slack dogg fo shizzmug.