A son or daughter procreated by a man skeeting into a girls mouth and said girl spits into another girls spread vagina lips.
male: Dayum girl i didnt know you were pregnant?
female: Yeah it's a cumswap offspring.
male: oh.....
female: yeah.
female: Yeah it's a cumswap offspring.
male: oh.....
female: yeah.
by ogmudbone69 October 15, 2010