In the more literal sense of the word:
When I was younger my priest douched me to clean out my evil spirits.
In the slangier, negative sense:
Now that I'm older and undergoing therapy I realize my priest really douched me over!
Actual - (Adj) A person who is a waste of oxygen; an idiot. Also used to describe a male / female (N) that won't let you run your game. To act in a ridiculous manner; embarassing (V)
My boy was "douchin'" out hard last night! The had to carry his ass out the J-Kwon show.
That kid is real "douchey". Keep him out the crib.
His name is Rich, but we all call him "The Douche".