Douchebaggery

1) The act of doing the same thing a douchebag would do.

2) A social crime resulting in namecalling and future abuse towards the douchebag.

Jeff says a joke that isn't funny and causes everybody to stop liking him.
After calling said douchebag a douchebag, refer to the previous act as douchebaggery, so the douchebag knows and never ever forgets that they're a douchebag.