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1.
Master; Known to have supernatural powers, knowledge and shyness
I met Sipo, in other words, my esoteric future...
by Vincent Santivanez July 09, 2004
 
2.
Si is spanish for "yes" and sipo is Spanish slang for "yes". Spanish version of the English "yup".
Hey, did you get the stuff?
Sipo.
by Krystalkitten October 26, 2009
 
3.
the label of one who specializes in the fine art of bad-assery
"she killed a lion with her bare hands then raised it's cubs to use as transportation... what a sipos."
by ruby76 December 30, 2011