Top Definition
The phenomenon that occurs after a play or stage performance where the actor/actress will say lines from said play for the next week or so in normal conversation inadvertently or by accident.
"how did the date go?"
"** i don't know she did get alot of laughs.**"
"what?"
"Sorry i have performance aftershock, i made her laugh, she liked that."
by spiderserna December 12, 2011

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