rock knocking 

A popular mischievous prank in which two or more individuals approach a house door and attach a fishing line to the top of the door with duct tape, with a rock attached with duct tape about a foot or so lower, then "knock" the victim's door by utilizing a "pulling" action from across the street, or otherwise in hiding.

Man, we went rock knocking last night and we got that lady so frustrated.

rock knocking by Bailey Hackbarth January 13, 2008

knocking on heavens door 

When you are masturbating and you accidentally hit your testicles with your fist.

Guy 1:"Have you ever knocked on heavens door?"
Guy 2: "Dude, i accidentally went knocking on heavens door last night and i was in pain for hours".

knocking on heavens door by Robo0000222 March 2, 2017

Knocking a grant out 

Code for stimulate one's genitals with one's hand for sexual pleasure

I'm going knocking a grant out

Knocking a grant out by S13rev February 5, 2023

knocking on the back door 

Pressing the tip of one's erect penis against a woman's anus in the hope that she'll agree to anal sex. This technique is futile 99.753% of the time, but persists due to the collective male delusion that women secretly love to be invaded in this way.

Boyfriend: (knocking on the back door)

Girlfriend: How many times do I have to tell you??? Get that thing away from there!!!

knocking on the back door by Carl Pinkerton May 16, 2009

white knuckling 

When you're taking a situation as it comes and flying by the seat of your pants. Often attributed to anxiety, and feelings either good or bad. A reference to clinging fiercely to something, such as a rope, to the point where ones knuckles would turn white from forcing blood from the capillaries.

Jesus, I'm sweating, I was white knuckling my way through that interview. Those guys are scary.

white knuckling by Markus J October 14, 2008

Noodle Knocking 

The act of shooting somebody in the head at close range.

"Ain't no driveby's done around here, we strait up noodle knocking man."

Noodle Knocking by cmescopen January 16, 2009

nostril knocking

Sticking your penis in to a nostril for sexual gratification. Also known as nostrilling or nose sex.

Since she had a cold today we skipped the nostril knocking and got straight to it.

nostril knocking by MysticX September 19, 2007