1 definition by Mr. Bator

A standing man getting his asshole eaten out by the woman he just ass-fucked, while she jerks him off from behind. The man has to have ass-fucked the woman, hence what makes your trombone "RUSTY"
Tom fucked Kelly's ass so well, she treated him to a Rusty Trombone.
by Mr. Bator July 30, 2008
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