What is Douche-nibbler?
1.
One who nibbles on douches and/or douchebags.
A sexual movement including a woman and a man, ETC.
A complete moron/jackass, but when you get tired of calling them a "Douchebag"
A person who had a prank pulled on, but completely oblivious of it.
"That guy is such a DOUCHE-nibbler! What the hell is his problem?"
See