tantrimony 

When you're giving testimony for a Senate confirmation hearing and it turns into a tantrum.

Brett really lost it man. What was supposed to be a rubber-stamp dog-and-pony show turned into absolute tantrimony.

tantrimony by T1000inSpace October 1, 2018

Mantrimony

The process by which two homosexual males commit to each other for life. Also, the resulting "partnered" state. Gay marriage.

John and Damien were joined in Holy Mantrimony today.

Mantrimony by Walter and Gin January 13, 2006

Twatrimony 

From "matrimony". The situation in which your friend is married to a complete tool, thus making them act like a twat.

"Hey, have you heard from Dave since he married that daft woman?"
"No, he's become a victim of twatrimony so can't speak to us anymore"

Twatrimony by MADmansMetalHarmony November 29, 2011