What is Cuntswap?
1.
Ejaculating into a woman's vagina, followed by the woman scissoring another woman's vagina therefore transfering the semen from one vagina to another.
"Yo, Steve, I totally cuntswapped those chicks last night!"
"You jizzed in a girls vagina and she swapped it into another girl's vagina by scissoring? Damn, thats crazy!"
See