Used commonly by modern day teens, kelsoff refers to the physical reference of male self-ejaculation. Kelsoff is pronounced similarly to Jack-off and has a similar meaning.
"I'm so bored right now, I can just stand here and kelsoff."
"The boy who kelsoffed during the day became tired but satisfied."
by Greenbrier News February 27, 2010

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×