When a guy is standing (some times squatting) and his partner gets behind him and gives him a rim job while, at the same time, giving him a hand job through his legs.
My girl played my trombone last night. My Rusty Trombone!
by lollios December 14, 2014

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giving a girl anal and her anus starts bleeding while you're queefing
i had to wash myself after giving her a rusty trombone
by pft jordan July 22, 2006

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When engaged in anal sex you take your dick out and it has shit on it. Your partner then starts to suck your dick and makes you say something due to pleasure.
She just didn't suck my dick she gave me a rusty trombone.
by spazzy690 March 07, 2011

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Damn! I had to read 53 WRONG definitions of the RUSTY TROMBONE! It has nothing to do with gay dudes, reach arounds, or assholes. It's when you fuck a chick ON HER PERIOD, then she immediatly blows you. Blood has a distinct taste that can well be described as...rusty.
Guy#1: Yeah, so did you hear Blake was dating that weird, goth, "Twilight" chick?
Guy#2: Hey, I bet he gets the old rusty trombone no sweat.

red wings
by dawnpatrol January 28, 2011

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt