Cum-Swap 

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.

Cum-Swap by ...and yet another person November 14, 2013

cum swap 

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.

cum swap by ploppppy December 12, 2007

Cum Swap 

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!

Cum Swap by neverwishagain1111 June 8, 2013

Cum-swap Garside

Cum-swap Garside, also known as the cumswap challenge Is a competitive game of tag where one person ejaculates into their own mouth and then cum-swaps with someone else who consequently adds their own jizz into the mix.
All contestants from around the world must then work together to get the ever growing cum-glop around the entire earth by cum swapping.
Upon arrival at the beginning country, the first occupant of said country to receive the cum will finally swallow it and thereby conclude the game.

The event is named after Robert Garside (born 6 January 1967), calling himself The Runningman, is a British runner who was credited by Guinness World Records as the first person to run around the world.

Person 1: Hey we doing the cum-swap Garside next Saturday?
Person 2: yeah! Me and Stacy has been drinking fish smoothies all week to prepare for it!

Example 2
The annual cum-swap Garside begins on the 9th of February.
Contestants from all around the world will be required to be on standby and await their turn until the games has concluded.

Cum-swap Garside by Flip-flop man January 13, 2021

Kansas City Cum Swap 

The Kansas City Cum Swap or KCCS for short is a high-level, two-part procedure taking approximately seven days and three people (2 male, 1 female) to complete. The first part involves two men having rough anal sex. At the point of climax the pitcher pulls out and ejaculates into the mouth of the catcher. The catcher then spits the semen into the mouth of the pitcher who then performs a "reverse felch" in which he blows the semen back into the anus of the catcher using a silly straw. This must all be done quickly as the anus of the catcher is (as required for the second step) badly bruised and will swell shut. After seven days (and a steady diet of anti-diarrheal medication) the catcher's anus finally relaxes and prolapses at which point he uses it like a dildo and sticks it into the vagina of the female. Once it is fully inserted the male then farts with enough force to fully expel the semen (and generous amounts of fecal matter) while simultaneously the female performs a "reverse queef" to suck the babybatter into her ovaries with the hopes of producing a healthy dbox offspring.

Bob: So last Summer Martha and I vacationed in Truck Stop, Missouri and did a Kansas City Cum Swap with a trucker named Jim.

Dave: No wonder your son is such a fuckin dbox.

Kansas City Cum Swap by Lord069 August 26, 2011

Dakota cum swap 

When fucking a woman cum inside, then suck out your own semen only to kiss her and put it in her mouth so she can swallow it

Sara was so horny last night I gave her the Dakota cum swap!

Dakota cum swap by Mr brownstone September 19, 2021

Detroit cum swap 

When a thug whips his uncut cock out and sticks it in a homeless niggas mouth and shoots his load, then allows the homeless man to do the same.

Hey dad
Yeah?
I wanna detroit cum swap this nigga
Ok cuh

Detroit cum swap by Nape rigger April 25, 2023