Relating to both homo and straight anal sex, it is when the receiver takes a shit and doesn't wipe their arse before being bummed
The giver is then "Banging the Chocolate Cheese."
See also: bumming
, anal sex
and fudge packer
Girl: Aw! I've run out of bog roll and have just had a massive cack
Boy: That's OK. I'm a chocolate cheese banger!
Gay Boy 1: Hey Boris! Don't wipe your arse, I'm up for some CCBing!
Gay Boy 2: OK! I'll poo in the bed and put it in your bum so I can CCB you too!
Innocent Bystander: AW FUCK NO! YOU SICK BASTARDS!!!