one who (literally or figurativly) fishes for used or new douches. the true douche mongers are those who make a profession out of this, by selling the douches at a stand of some sort.
also, an insult.
Carl: I heard that he's reblocking the entire first act.
Henry: What about the second act?
Carl: He cut it.
Henry: ...What a douche monger
An individual who has transcended the status of a "douche bag" or a "douche nozzle". By saying that someone has "douche bag lips" implies that they enjoy catching the douche runoff that the "douche nozzle" would normally collect.
The guy you work with who asks you to smell his fingers after he fingered a chick the night before is a "douche bag lips" Or the guy that hits on other peoples wives at parties that you are attending is a gigantic "douche bag lips"