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2.
A slow driver. Most often seen driving 5 under in the left lane of the interstate.
Hurry up and get around this slather ass, dude.
by Leroy Spunkin December 19, 2007
 
1.
Beyond lazy. Completely unmotivated and sloppy.
Teddy: Mike hasn't lifted a finger to clean the apartment. All he does is sleep and eat.

Matt: Yeah, he is a real slather ass.
by BMush April 26, 2008