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 13, 2011
Get the Performance aftershock mug.
When you're ex- girlfriend/boyfriend gets noticeably more attractive after the relationship is over:

Often a figmental allusion. Sometimes caused by a sudden motivation of the ex to impress others in means to consolidate their new entry into the single lifestyle.
"Damn Connor, her Aftershock glow has every guy in the school wanting to get in her pants! You might want to get her back."
by DryBurn January 4, 2016
Get the Aftershock glow mug.