look up any word, like jamflex:
 
5.
Fucking or hooking up with a guy after your friend fucked him or hooked up with him without him being signed off
Bro, Wanda totarry cumswapped Lyle from Cara!
by bellaaaaaxxx August 13, 2009
 
1.
One female transfers a man's ejaculated semen to another's mouth. Usually done during a manage a trois.
Julie cum swapped into Christie's mouth.
by ploppppy November 15, 2007
 
2.
the act of a man ejaculating in one womans mouth and then right after, the women who's mouth possesses the cum drains the sperm out of her mouth into another womans mouth.
I came in her mouth then she cumswapped it into her friends mouth
by bigdick dan July 05, 2007
 
3.
The act of 2 or more people exchanging their cum with each other. The mouth is almost always involved.

Regardless of gender, regardless of who's cum it is, & regardless of how many people are involved in the cum swap. If the previous conditions are met it is considered a cum-swap.

When the mouth is the sole, or nearly so, source of the exchange it is known as cum kissing. A very similar concept.
Last night after I came in my girlfriend's pussy I immediately ate the cream pie. Her & I then cum-swapped until finally she swallowed it.
by ...and yet another person November 14, 2013
 
4.
1. The transfer of a man's semen from one mouth to another.

2. When two men swallow each other's semen.

3. A group of men who ejaculate at the same time.
Dude me and my roommate did a cum swap last night, he drank every last drop!
by neverwishagain1111 June 08, 2013