Top Definition
Meaning a combinationan of a useless word and "I don't know". Pronounced pu-shaw-eh-den-oh. You must say this word very quickly to fully understand the complete uselessness of it when refering to something that you either are completely unsure of or simply don't care a crap for.
damon; What do you think we should do this weekend?
me; Er, em, pshawidunno???
by Liz Pereira March 29, 2008

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