Clenching the Wrench

When you aggressively stroke your cock so hard you shit yourself. This may cause small lacerations along the shaft/tip, and or severe fright from masturbation.

Friend: "Is Tommy here?"
Mom: "Yes, he's upstairs in his room"
Friend: "Okay" *goes to walk upstairs*
Mom: "I wouldn't go up there unless you want to watch/hear him clenching the wrench. He's been doing it all week."

by microwave420.69 September 24, 2019

Buttock-clenching

1 Noun. The clenching of the Gluteus Maximus.
2 Adj. A word used to describe a tense, awkward or painful moment. This word was used by Bear Grylls whilst making a dangerous descent down a rock cliff in Man Vs Wild.

Buttock-clenching is a phrase used by British people.

1 Buttock-clenching helps strengthen the Gluteus Maximus.
2 That fall looked buttock-clenchingly painful.

by JMUK July 17, 2012

fanny clenching

When a women watches either a really scary film or a bit in a film which has a tense or climatic part to it, tends to clench her fanny together tight from excitment and nerves. The women may also squeeze her thighs tighly and also her asre cheeks too.

' Oh my god i couldnt keep still watching that film, it was so fanny clenching'

by Carina Crolla May 13, 2005

Butt-clenching

When something makes you so nervous or scared, it makes your butt clench

It was butt-clenching watching Derek Fisher shoot a 3-pointer with .4 seconds left.

by madhotfyre November 1, 2017

National Butt Clenching Day

For the ones that like to clench. Clench all day long on the 17th of March

Bro nice clench can’t wait for the 17th Because that’s national butt clenching day !

by realdeffr February 27, 2020

penis clenching

when one sees someone so un-sexually arousing that the tip of the penis literally clenches shut. One assumes this is a natural human reaction to even the slightest chance of sperm leaving the body and finding its way to an egg housed in the object of one's disgust, thus furthering the insult to mankind that is said person.

Guy 1: "dude, that look on your face, are you penis clenching?"
Guy 2: "Check out Nora the whale over by the concessions stand" (shocker)

by thebiggercat September 12, 2010

Ass-Clenching Cold

A state when the temperature is so low, that in addition to you shivering and rubbing your arms, your ass cheeks press together in order to prevent a heat loss from your buttocks.

You'll freeze to death if you go out in that Ass-Clenching Cold Weather!

by SovietRyan November 16, 2014