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I-I'm
P-Peeing
M-My
P-Pants
C-Cause
I-I'm
L-Laughing
S-So
H-Hard

An Term used to descride the hilarity of your response to another person or situation.
Whenever I see people riding polar bears in Sweden IPMPCILSH !!!
by NotYourTypicalSwedeHart February 06, 2011
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