Fictional device used to reduce the diameter of an extremely large vagina. It involves inserting a complete Smithfield whole cured ham into the cavernous canal, then pulling out the bone, leaving a smaller hole for one to fornicate with and reducing the âhot dog in the hallwayâ effect.
âJenny said sheâs gonna let me hit it at the party tonight!â
âBro, errybody been hitting that. In fact she just left Billâs house and heâs hung like a goddamned horse. Youâre gonna need to bring a Smithfield Shim or youâre going to hear your own echo in that pussy.â