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1.
To leave a group or conversation by claiming or actually using the restroom, then not returning, to avoid boring or otherwise unwanted situations.
Guy 1: Dude, where did Steve go?
Guy 2: I dunno, he said he was going piss like twenty minutes ago.
Guy 1: That douche Dis-a-peed on us!
by M_C_Kracken! May 01, 2011