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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
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