I'm assuming you're referring to a colloquial or slang term. "Tranny dongs" could potentially refer to a type of component or part, possibly related to transmissions or mechanical systems, but without more context, it's difficult to provide a precise guide.
I'm assuming you're referring to a colloquial or slang term. "Tranny dongs" could potentially refer to a type of component or part, possibly related to transmissions or mechanical systems, but without more context, it's difficult to provide a precise guide.