Top Definition
text talk: 4K10 = 4 K 10 = fornicating = having sex, fucking, gettin it on!
"I came over last night and the lights were on, so I knocked on the door, but, no one answered."

"We were 4K10."
by Sex ED July 28, 2006

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.

×