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1.
A word slam of "Grumpy" and "Pissy" for child friendly use! can be used in place of many other verbs for good clean fun etc.
Why are you so Grussy!
by BoomDagga January 12, 2013
 
2.
Combining the term Gross Pussy into one word, like Fucking ugly is Fugly
Dude, that chick had such a grussy, it made me sick.

Or this place smells like grussy
by Dustin Despres September 03, 2006