A trombone joke is a joke that often involves the numbers 69 and 420. They usually include the majority of dead 2012 memes, and referring to someone's joke as a trombone joke is usually an insult. Of course, some people find this humor hilarious and will take it as a compliment.
Cashier: That will cost you four dollars and twenty cents
Customer: Blaze it
Cashier: Sir, we don't allow trombone jokes in our store. That is a violation of our rules.
Customer: Blaze it
Cashier: Sir, we don't allow trombone jokes in our store. That is a violation of our rules.
by Sockth January 25, 2019

by Elwood P. Dowd January 2, 2007

A lovely phrase meaning crack pipe.
First used by Holy Moly:
"You are never alone with a glass trombone"
First used by Holy Moly:
"You are never alone with a glass trombone"
by downtuning February 29, 2008

A sexual act involving two partners (at least one male) in the 69 position. One partner works the male partner's penis like a trombone, while blowing into his ass, like a trombone.
by eMeS September 26, 2003

Having a girl lick your asshole while giving you a hand job. Just like a rusty trombone but with bloody hemmoroids
My girlfriend wanted to give me a rusty trombone but was surprised when she looked like a vampire when she was finished. I laughed and told her it was a bloody trombone.
by Ibestew2 August 19, 2009

when you fuck a girl in the ass and then jizz but keep on fucking her when you pull out your dick it looks like a rusty trombone.
by lkjhhjkl January 2, 2010

she was sure in for a surpise when i hadn't wiped in a few days, and she played the crusty trombone.
by hot karl August 11, 2003
