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SNILL IS very simple. A combination of Sweet Nice ill.
Hey man did you see that girl in the hall she had some SNILL KNockers.!!!
by Deebler September 07, 2006
Stupid Negro In Left Lane
This snill won't get out of the left lane.
There is a snill riding in the left lane going slow.
by Joe Bagof February 10, 2008
(Verb) : When you kill time on your computer without actually accomplishing anything.
Person 1: Wachadoin bro?

Person 2: nuthin man, just snillin'.

Person 1: Haha i know the feeling bro. I snilled out yesterday.
by Thumperrrrr August 24, 2010