verb direct a spray of water into a bodily cavity, for cleaning.
noun a small syringe with detachable nozzles.
— synonyms: douche_bag
noun irrigation with a jet of water or medicated solution into or around a body part (especially the vagina) to treat infections or cleanse from odorous contents.
Examples
“It's fine to help your friends eat healthy, but don't be a douchebag and harass them about it.”
“That pocket protector makes you look like a douchebag.”