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.
by King of all Urban September 20, 2010
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
by Teh real creaminess August 7, 2008
Wow, check out that chick. She is having a whale of a time in that spunkdunk. She's literally covered in jizz.
by Jon October 10, 2004
A large group of men all masturbate and cum all over a basketball, the person to cum last has to cross a basketball court and keep playing with the basketball until they successfully dunk it.
by Ronger September 14, 2017