When a someone or something is engaged so furiously in a sexual act that it is being thrust back and forth like the slide mechanism of a trombone. The rusty part of the word is from the person or objected being covered in some kind of bodily fluid.
by ShadowChix March 8, 2017

by Dixoncider420 February 5, 2022

by I got a pocket full almonds April 20, 2017

When a male individual is in the action of masturbating, and they all of a sudden ejaculate extremely loud, much like a Trombone.
by AikaFNBR December 1, 2020

1. A type of bike rack used in Paris that allows two bikes to be locked on either side of the rack without the pedals clashing.
2. A variation on the rusty trombone, where both parties are also smoking cigarettes
2. A variation on the rusty trombone, where both parties are also smoking cigarettes
1. I locked up my cargo bike at the Paris trombone down the street, it's really nice that it accommodates longer bikes!
2. I asked Rodney if she wanted to give me a Paris Trombone but she said she doesn't like the after taste of cigarettes so we settled on a rusty trombone
2. I asked Rodney if she wanted to give me a Paris Trombone but she said she doesn't like the after taste of cigarettes so we settled on a rusty trombone
by RecklessPete December 21, 2023

"After three martinis and with my pants on the floor around my legs she was really Playing the trombone if you know what I mean."
by WitchMD November 10, 2024

by tododeku shipping cosplayer February 25, 2020
