Top Definition
Slang for acid aka LSD (Lysergic acid diethylamide). Typically used by those who know they are as fine as they wanna be (see 'fantastique')
Jane- Yo son, you on that illy spilly?
John- Yes dawg, I am tripping balls.
by Rich elemeno P May 20, 2008
4 Words related to illy spilly

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