look up any word, like rimming:
Copperchomp is, whether knowingly or not, performing oral sex on a girl who is on her period.
I met a girl in a club last night, took her home, went down on her. When I looked in the mirror after, there was a mark on my face and I realised I'd given her a copperchomp.
by ToxicTwin April 10, 2011