The act of finding a suspicious napkin next to dumpster that has a 1 in a billion chance of being used as an anal wipeage utencil by an anonymous homeless man/woman.
Nathan: dooOooOOD! I touched a napkin and I think it had a gray/green/blue/orange/pink/dark brown/black stain on it around midnight so I couldn't fucking see anyway but It's probably going to get on my carpet then my floor and steering wheel and kill me.
Wheece: Well that sounds like a SHARTKIN my friend.
Tyler: Let me smell it to make sure.
Wheece: Well that sounds like a SHARTKIN my friend.
Tyler: Let me smell it to make sure.
by Creamy Dudlius December 7, 2021
The act of one's anus being tossed by another member of the same or opposite sex, while in the act of sharting. (see shart)
Tucker: Hey Ken, you see that member of the Village People cover band?
Ken: The fat hairy biker?
Tucker: Yea babe, I had him lick my Shartkins. (lisp)
Ken: The fat hairy biker?
Tucker: Yea babe, I had him lick my Shartkins. (lisp)
by Bibble Beez June 16, 2011