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

Stroking the penis while sucking it. Referencing to how you have to blow into a trombone, and stroke it.
by BeastEJ December 14, 2018

A device used for brilliance and power! They usually overpower the mellos and baritones with little effort.
by Ktbone19 August 20, 2018

by The Kiley February 3, 2015

by Dingle booger August 15, 2023

Something failing couples try to save their marriage. The man attaches a low pressure air pump to his pens and injects air into his bladder, he then has sex with his partner as normal while 'peeing the air into her, making a trombone sound.
by SquatchIt September 23, 2020
