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1.
When a woman goes down on a guy while he is taking a #2 on the toilet.
When a guy says, "Hey wanna give me a blumskin?" You say,"no way!" Unless your into that kinda thing.
by Gigi Penelope October 31, 2013
 
2.
Alternative name for Big Mac
I just ate an amazing blumskin.
Would you like a blumskin?
by Mrkitty339 March 31, 2011