are days when people can't get over the holidays and still feels like celebrating, they skip work/school/duties and enjoy the rest of the days like it is still the holidays.
by pen486386 January 6, 2011

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."
"** 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 26, 2011

Jodi you can't believe what happened to me. After my husband and I made love the other night I was laying there recovering from the last orgasm and another one hit me without being touched!!! It was like an aftershock!!!!!
by bigerq January 18, 2017
