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adj. To make a mistake based on having had the piss taken out of you.
see take the piss, taking the piss, pistake
"Did you really think he was going to give you 100 quid for nothing? You must be pistaken - he's not even worth 100 quid"
by natushka March 12, 2005

Words related to pistaken

pistake take the piss taking the piss