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 27, 2023
A playful yet gentle word describing the way the world takes the time to visually interpret the act of penetrating trees and foliage with one's erect penis.
India's tolerance regarding Knock on Wood was said to have decreased their population growth in the years 2020 to 2024.
by Pattifil August 03, 2022
when one woman knocks quietly but urgently on the door of a public restroom that another woman has been occupying for too damn long.
In an attempt to urge the bag lady in the bathroom at Starbucks to hurry the fuck up, Julie employed a bitch knock.
by ducksRpeople2 September 13, 2011
by toast123 April 23, 2013
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 20, 2021
Scruffy: "Dude, my mom has no idea where I am right now, she's none the wiser."
Ferguesson: "Oh man, you'd better air knock on that, there's a tree all the way over there."
Ferguesson: "Oh man, you'd better air knock on that, there's a tree all the way over there."
by Internet QA Group December 19, 2012
by Mason Canadian October 29, 2008