What you get when a transsexual male tucks, tapes, or lashes his penis back sandwiching it between his legs. This word is where the affectionate term for a large meaty sandwich originiates, i.e. to have a lot of meat tucked between two buns.
Jason was about to hook up with a hot chick from the club but luckily as (s)he bent down he spotted her tranwich and quickly bolted.
A person you hate intensely not because they deserve such hatred but because they serve as a focus for your general hatred. A healthy way to dispense with excess animosity.
Jake's not really that big an asshole. He just serves as my hate sink.