The process of throwing some lube in between a chicks shoulder blades and cock fucking her muscular back. To complete the Cumcannon, one needs to cum all over the back of the girl's hair and rub it in.
So i was banging this broad on the swim team when I decided it was time to give the chick a cumcannon.
A form of paranoya that usually kicks in within a week after having sex. It is when you have sex with a guy, and for the next few weeks you are scared that every white/sticky/transparent stain on your shirt/pants/wall etc is cum.
Basically, it means you're paranoid of cum being everywhere.
"oh no, what is that stain on my wall!? and what is that mark on my shirt!!??"
"relax, it's probably only toothpaste. Geez you're cummanoid!"