1. An object used for vaginal hygeine.
2. An insult given to a person who is being douche like.
Stacey and Lauren shared a loving relationship, however Laurens pet name to Stacey was Brown Bear and Stacey's to Lauren was douchebag. The reason for this was that Lauren was having unprotected sex and not very hygienic in concern with the vagina, thus Lauren was a acting like a douchebag!
I have a date tonight and I'm suppose to meet her at the restaurant. Although I think I'll douchebagit and go out with this other hot girl I met at the drug store!
Casey's consistent douchebaggery continues to astonish everyone around her. Today she tried commenting on an action of one of her peers by calling what he did, "douchebagism". Righteous Douchebaggery.
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.