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1 definition by Dan Walruss

 
1.
Upson is another version of the joke updog

its up-son, like calling some one "son"
1 - Damn! It smells like some upson in this bitch!

2 - Whats upson?

1 - Nothing much, just chillin....

(laughter)
by Dan Walruss January 22, 2008