Snowballed

[Donald Trump]

An [exchange] of semen during oral sex.
A guy ejaculates into his partners mouth during oral sex, and then semen is passed back into the mouth of the guy who just [ejaculated] through kissing.
This can involve multiple partners, and the term can also be used when the guy who just came didnt know his partner was going to [transfer] his semen back to him.

[Dorothey Allen]

past simple and past participle of snowball