Verb: When one grabs a person's testicles firm in their hand and knocks them against the person's own taint, as if knocking on the door with a traditional door knocker.
Tyler: "Bro, they tried this new thing called "taint knocking" on me last night."
Brett: "Yeah? How was it?
Tyler: "Not great......"
Brett: "Yeah? How was it?
Tyler: "Not great......"
by Clit Mckinnon May 19, 2021

(gamer slang) v. The act of incapacitating a player on the enemy team rendering them no longer an immediate threat. Popular in both fps and battle royal style pvp games.
Party leader Tyler announced "knocked one" over the mic after landing a crippling hit from 50 yards with his sniper rifle.
by Pjazerlazer August 22, 2023

“Fart” is a flammable gas that our bodies produce and eject which is often set on fire by some people
“Knock” comes from “engine knock” is when the fuel in an internal combustion engine prematurely combust in the cylinder (damages the engine)
“fart knock” is when a person attempts to set their own fart on fire, but end up combusting his/her fart before it goes out of the anus, as a result, his/her anus is blowed up or barbecued from the combusting fart
“Knock” comes from “engine knock” is when the fuel in an internal combustion engine prematurely combust in the cylinder (damages the engine)
“fart knock” is when a person attempts to set their own fart on fire, but end up combusting his/her fart before it goes out of the anus, as a result, his/her anus is blowed up or barbecued from the combusting fart
My friend went to the hospital, because he tried to set his fart on fire, but ended up with Fart Knock
by Person #37878678 September 5, 2021

by veevrede October 6, 2008

A few light tapping motions dat an able-to-ovulate chick makes on her sexual partner's "woody" wif her knuckles prior to his entering her, in da superstitious hope dat said action will bring her good luck --- i.e., dat said impending bodily-union won't get her "knocked up".
Practicing da rhythm method or taking birth-control pills are indeed often-effective ways to lessen da risk of unwanted pregnancy, but they are by no means reliable, so you'd likely still feel da urge to "knock on wood" each time you "do it" without a condom.
by QuacksO February 26, 2023

What you look through with one hand to peep at your "smoking hot" neighbor while you jack off with the other.
by pikx45 July 6, 2010

Extremely hard, loud, repetitive pounding on an outside door or window to show authority to those inside and get them to open the door.
by SoManyShenanigans August 14, 2021
