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 “hot dog in the hallway” effect.
“Jenny said she’s gonna let me hit it at the party tonight!”

“Bro, errybody been hitting that. In fact she just left Bill’s house and he’s hung like a goddamned horse. You’re gonna need to bring a Smithfield Shim or you’re going to hear your own echo in that pussy.”
by Eddie.d November 17, 2019
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When you take a water can from your truck, secure the nozzle in your asshole, and give yourself a good colon cleansing.
"Gave myself a good Smithfield Cleanser the other day and I tell ya man I feel great! Yall should give it a try"
by Maverick402 June 15, 2019
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When you are getting a blow job and you quickly pullout, stick a jumbo marshmallow on the tip of your penis and jam it back in his mouth.
"This guy was giving me a blowjob last night so I hit him with the good ol Smithfield S'more. He choked so hard bits came out his nose."
by Maverick402 June 15, 2019
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