Clanch 

The art of aggresively using your kegel muscles.

Alicia had to hold in a queef so she clanched so hard.

Clanch by chippy17 September 18, 2016

Clanch 

The act of crunching together one's bottom cheeks with enough force that the base of the spine audibly re-aligns itself.

Man, I got so mad, and I clanched so hard - it sounded like a rockfall!

Clanch by Orson_Kart June 12, 2016

Clanch 

The act of crunching together one's bottom cheeks with enough force that the base of the spine audibly re-aligns itself.

Man, I got so mad, and I clanched so hard - it sounded like a rockfall!

Clanch by Orson_Kart June 12, 2016

Clenching Chowder 

What happens after having unprotected anal intercourse with a man with a tiny penis. The ejaculate doesn't get past the Anus Hotel lobby (so to speak) and coagulates very close to the one and only exit; occasionally causing a bloated feeling or general lower GI discomfort.

After they found him half naked with his scout master in the closet, he ran to that restroom so fast you just knew he was clenching chowder.

Clenching Chowder by Finn Gerbang January 6, 2015

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.

Buttock-clenching by JMUK July 17, 2012

Butt Clencher 

A suspenseful situation, typically referring to a TV show, movie, or book.

The season finale of The Walking Dead was a major Butt Clencher!

Butt Clencher by madambluhhh April 13, 2015

The Clench 

Jaw clenching caused as a side-effect of consuming LSD. Generally not dangerous. Treated by staying hydrated and exercising the mouth. Nothing to worry about as worrying can cause a bad trip.

Luke: You just gotta watch out for The Clench
A.J. (On LSD): The Clench? Wtf is that?
Luke: You don't know about The Clench man? That shit will lock your mouth shut!

The Clench by deadheadkid92 August 10, 2010