Doo-bag

A word said when one starts to say douche bag but decides mid-word that it would be innapropriate for his surroundings so he tries to say d-bag instead. It can also be used when someone feels the word douche is too harsh, yet has already started to say it.

Forrest sits at lunch as a teacher walks past the other side of the table. "Lauren, stop calling Tim a walking joke, you're such a doo-bag" (forrest tries to stop "douche" midword and replace it with "d", but is too far through "douche" and doo-bag comes out)