The Old Joanie Effort
When an individual knows that a certain task is, by all practical reasoning, impossible to complete, still makes a meagre attempt to complete said task out of pity or moral obligation.
Kory agrees to go to prom with Joanie to save her from going with a creepy kid named Stuart. Later that night, Joanie wants to put out but Kory knows he can't quite get it up. Still, he resigns to giving it the old Joanie effort.