When one or males make contact with the heads of their penises. Can often be played as a game similar to jousting.
by donhonk December 10, 2010
by Chris&Annee February 17, 2021
To Masturbate relentlessly.
After looking at that hot girl, whao i had to go knock a pump. Ater knockin a pump, i felt shameful.
by Acidplanet_Member September 21, 2005
Another form of "ding-dong ditching" where instead of ringing the doorbell you kick the shit out of it several times and then book it! (sometimes yelling OOGIE BOOGIE NIGGER in the process)
by theonetheycallthevisionthatbaresthegift March 31, 2005
by Rob May 05, 2003
Smoking weed with your buddies
Hey homeboy, feel like "knockin nids" today. This term was created back in 1991 while attending A.S.U. (Arizona State University) Much fun was had by all
by Da Skrill June 23, 2006
To bump into another man's testicles with one's own testicles, whether intentionally or not, when one is double-penetrating a woman with another man.
The idea of a threesome intrigues me, but the chance of knockin' nuts with another dude turns me off.
by xray233 August 11, 2007