Rusty trombone is a sexual act in which a man stands with his knees and back slightly

torqued In physics and mechanics, torque is the rotational equivalent of linear force. It is also referred to as the moment of force (also abbreviated to moment). It represents the capability of a force to produce change in the rotational motion of the ...

with feet at least shoulder width apart to expose his

anus The anus (Latin, 'ring' or 'circle') is an opening at the opposite end of an animal's digestive tract from the mouth. Its function is to control the expulsion of feces, the residual semi-solid waste that remains after food digestion, which, d ...

.Tate, Jordan. (January 9, 2007) The Contemporary Dictionary of Sexual Euphemisms. Publisher St. Martin's Press A person typically kneels behind the man and performs

anilingus Anilingus (from the Latin ''anus'' + ''-lingus'', from ''lingere'', "to lick", variantly spelled "analingus") is the oral and anal sex act in which a person stimulates the anus of another by using the mouth, including lips, tongue, or teeth. I ...

while reaching up beneath the

testicle A testicle or testis (plural testes) is the male reproductive gland or gonad in all bilaterians, including humans. It is homologous to the female ovary. The functions of the testes are to produce both sperm and androgens, primarily testostero ...

s or around the body to manually administer rapid up and down motions of the

penis A penis (plural ''penises'' or ''penes'' () is the primary sexual organ that male animals use to inseminate females (or hermaphrodites) during copulation. Such organs occur in many animals, both vertebrate and invertebrate, but males d ...

, mimicking the motions of a

trombone The trombone (german: Posaune, Italian, French: ''trombone'') is a musical instrument in the brass family. As with all brass instruments, sound is produced when the player's vibrating lips cause the air column inside the instrument to vibrat ...

player.Sex Dictionary. (2007)
Sex Words Defined and Explained: R.
'' The act is defined primarily by the physical orientation of the partners, the combination of anilingus with manual

sexual stimulation Sexual stimulation is any stimulus (including bodily contact) that leads to, enhances and maintains sexual arousal, and may lead to orgasm. Although sexual arousal may arise without physical stimulation, achieving orgasm usually requires physic ...

and the resemblance of the anal sphincter to a trombone mouthpiece; however, other positions and variations are possible.

Usage history

In 2003, the

Detroit, Michigan Detroit ( , ; , ) is the largest city in the U.S. state of Michigan. It is also the largest U.S. city on the United States–Canada border, and the seat of government of Wayne County. The City of Detroit had a population of 639,111 at ...

talk radio show Deminski & Doyle began an educational hour discussion of urban-legendary sex acts with the statement, "Try to describe carefully what a '

Cleveland steamer Coprophilia (from Greek κόπρος, ''kópros'' 'excrement' and φιλία, ''philía'' 'liking, fondness'), also called scatophilia or scat (Greek: σκατά, ''skatá'' 'feces'), is the paraphilia involving sexual arousal and pleasure from ...

' would be..." and then went into details of the

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