Chin-Stinner

The action of "cum blasting" your own chin (and/or face) in the act of masturbating (jerking off) and reaching a powerful and sudden climax.

"dude, I full on gave myself a Chin-Stinner this morning. Caked myself"

"I was sent this Snapchat of this guy wanking himself off and he cum all on his own face. It was a beautiful Chin-Stinner"