Judi Dench 

With absolutely no deference to the dame it references, a Judi Dench is a colossal bowel movement.

He left a big Judi Dench in the toilet for everyone to admire.
See Irvine Welsh's novel FILTH for further elaboration.

Judi Dench by C.W. Smith May 21, 2004

Judi-Denching 

To lift one’s leg in the air, like a cat, and reveal one’s butthole. Often done spontaneously and to surprise others. Requires flexibility to lift one’s leg nearly vertically. See film Cats (2019) for reference.

Girl to friend: Can you believe Britney?! She just Judi-Denched herself and then kissed her boyfriend. Iconic.

Chad: Bro, I met this girl on Tinder that wants to watch me Dench. Should I go for it?

Trent: Yeah bro, I’ve been Judi-Denching for my girl since spring break.

Judi-Denching by Prudence19 December 30, 2020