1 definition by ShadowChix

When a someone or something is engaged so furiously in a sexual act that it is being thrust back and forth like the slide mechanism of a trombone. The rusty part of the word is from the person or objected being covered in some kind of bodily fluid.
I fucked that amazon drone so hard I gave it a rusty trombone.
by ShadowChix March 8, 2017
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