To eat a girl's ass while fingering her as if you were cupping a french horn while playing it.
I did the Rusty French Horn after the Opera.
by Kilowog1 April 25, 2008
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Term for leaf blowers, such as those used by gardeners.
Wow, it's only eight o'clock and the gardeners must be here already. I hear the Mexican french horns.
by dannyb November 22, 2007
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When a guy is fisting a girl and blows into her asshole at the same time.
After a long day of cleaning the house for Betty Sue, Cleatus decided to repay her in bed that night by performing the dirty french horn.
by Cleatus and Betty Sue March 28, 2017
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Performing analingus on a female while reaching around to fist her, similar to playing a french horn.
Wow, I never realized how loose this chick was until I gave her a rusty french horn.
by Freddy-Wayne August 9, 2007
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To suck a guys dick and fist his asshole at the same time.
Yo motha fucka does your dick feel good,and does your ass hurt from the Rusty French-horn last night?!
by Zack Payne October 4, 2006
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It's a take-off of the rusty trombone, where you 'toss the salad', but instead of the handjob, you insert your fingers like you're playing a french horn.
"Yeah, I played her like a rusty french horn!"
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When a guy takes a trumpet, shoves it in a girls vagina as far as it can go. Then he blows into it making it tickle. He then takes it out, cums in it, making the girl suck it out.
Nick: "Dude i just got done giving Kelly a french horn drill."
Ant: "Really?! I did it to Hannah the same day."
by BIGDICKS"R"US!! March 21, 2010
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