1. When you cum on a swing-able object(like a rope) and you swing it around making the cum shoot out in many different directions, therefore making the area you cumcoptered in (such as a room)randomly stained with your sperm. Usually done in other people's houses as a prank or if you really hate them.
Example: Person 1: yo Jason, im going to prank James by pulling a Cumcopter in his room.
Person 2: Good idea Jimmy, i fuken hate that kid, that prank would deserve a roflcopter.
Person 1: I get it they both end in copter... anyways can i borrow a swinging like object so i can do it?
Person 2: ya sure let me go get my sisters skip-it.
a woman or man who has enough cum in them to feed africa for a year and provides most of the ingredients for protein shakes. they normally hat fat people but when the lights are out they don't care who's penis it is as long as they can feel it.
Blair: oh my god, sally, your sisters a whore.her vagina must feel like sandpaper.
Brandon: yeh last week cummopolis came over. shes so big she took my whole chode and a charged busko
At the point of intercourse where the male has an orgasm, he pulls out and spins his body in such a way to make the penis whirl around like a helicopter blade; therefore disseminating his semen throughout the area.
"Just when I thought he was done, Tommy pulled out and did a cumcopter and splatted his cum all over my walls"