1) a term used to point out that a fallacy in in fact false with no actual evidence to support this claim

2)an expression of annoyance with someone who's views are different from yours

3) a cooler word to be used in place of others, including but not limited to the following:no, fail!, whatever, fuck you, piss off, idiot ect...
1)religious nut:gods gonna send you to hell because you aren't good
atheist:pisha

2)everyone:the world is flat
Columbus and Galileo:pisha

by manly noble old king March 14, 2009
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Small, cute person (usually girl).
A: Do you know that small girl who works in Cook&Look?
B: That misha pisha girl?
A: Yeah.
B: Yes, i know her... she's so cute :)
by PocitacovyManiakKristy April 26, 2011
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