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1.
italian friend;
fellow itialin
"Hi, my pison"; meaning one Italian calls another a "pison".
by gwen mangiamele November 15, 2004
 
2.
A spanish word used to describe having sex. In this form it means to fuck or do sexual stuffs with.

Basically find any sexual use for the word.
Hey are you going to pison on her face?

YO! She is down for my Pison sauce!
by Mike Super CHICKLET! June 13, 2010