A sexual activity whereby arousal may be achieved (forcibly) by ejaculating on the chest of another, and then partaking of the ejaculatee's head and submitting it unto the ejaculatory fluid.
Having spermed on Marisa, Marisa took Dan by the hair and made him lick it up. Teh spunkdunk lulz <3
Putting your sperm in someone's drink. Like the Orange County guy that shot his wad into his coworkers water bottle.
That girl pissed me off so I spunkdunked her and laughed my ass off as she drank her water with my load.
Spunkdunk is the name given to a a bucket full of cum, that a woman immerses her face in.
Wow, check out that chick. She is having a whale of a time in that spunkdunk. She's literally covered in jizz.
1. The act of ejaculation inside a sexual partner.
"I can't believe you let him Spunk Dunk you! Do you want to get pregnant or something?"