What does rusty tombone mean?

"Rusty tombone" is likely a playful or humorous way to refer to a rusty Trombone, which is a slang term for a sexual act involving analingus and anal penetration. The phrase combines "rusty," suggesting something worn or old, with "trombone," a musical instrument, to create a cheeky double entendre. It is not a widely recognized term and is typically used in adult or comedic contexts.