The "rusty trombone" is a slang term referring to a specific sexual act that combines anilingus with manual stimulation. The term is part of contemporary sexual vocabulary and has been documented in various popular culture references and informal discussions about human sexuality.
Etymology and Cultural Context
The phrase emerged in modern colloquial language, combining two unrelated concepts to create a humorous euphemism. Like many sexual slang terms, it reflects:
- The creative nature of informal language surrounding human sexuality
- The tendency to use metaphorical or comedic terminology for intimate acts
- The evolution of sexual vocabulary in contemporary culture
Rusty trombone
Rusty trombone is a sexual act in which a man stands with his knees and back slightly torqued with feet at least shoulder width apart to expose his anus. A person typically kneels behind the man and performs anilingus while reaching up beneath the scrotum or around the body to manually administer rapid back-and-forth motions of the penis, mimicking the motions of a trombone player. The act is defined primarily by the physical orientation of the partners, the combination of anilingus with manual sexual stimulation and the resemblance of the anal sphincter to a trombone mouthpiece; however, other positions and variations are possible.
https://en.wikipedia.org/wiki/Rusty_trombone

Seonglae Cho