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1.
An expression used when dismissing a certain idea or thought.
fu'dat i'm goin' Maccy D's
by BOBLOL15 May 24, 2010
 
2.
What the fuck is that?
ACORN? Fudat?
by ZManYes October 20, 2008
 
3.
Stands for Fucked Up Dumbass Truckdriver.

My Brother Keefie is a Fudat
by Chuck Hughes July 27, 2006