Top definition
the stupid grin on the south park characters when something makes them happy, or when theyve done something mischievous or devious. also you can use S.P.S. instead of L.O.L. in a text to denote something funny or whimsical.
after picking up that hot chick at the club last night jonny had the biggest south park smile!
by jonnyrincon December 15, 2012
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