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a ShooterMcGavin 

A brand new, never used insulin syringe or a 10 count bag of them. The one and only difference between a "ShooterMcGavin" and an insulin syringe or 10 count bag of them is; Insulin syringes are for the purpose of administering insulin when a diabetics blood sugar has dropped dangerously low. Any brand new never used insulin syringe turns into a "ShooterMcGavin" once it contains some sort of Schedule I and, or II Narcotic and, or Stimulant solution with the intent of being either injected directly into the blood stream either in the neck, eyeball or that vein in your forehead that pulsates when one gets extremely aggravated. However if the tip of the "ShooterMcGavin" is intentionally broken off so the route at which it's been designated can then be changed to be administered into the rectal cavity known as "boofing" depending on which hemisphere you're in. However when this happens, like a caterpillar going through a metamorphosis to turn into a butterfly. When a "ShooterMcGavin" is altered to be used to boof said illicit substance(s) it has a metamorphosis of its own and it's designated call sign then changes from "ShooterMcGavin" to "Chubs".
Junky 1 says to junky 2: I'd give my left testicle for a ShooterMcGavin right now..

Junky 2 hands Junky 1 his pocket knife. Followed by junky 1 asking junky 2: "What's this for? You know Im waiting on my new id in the mail. Since you insist somebody you, or your family knows will see you at the pharmacy making a medical purchase. At which point, pharmacy staff won't be able to resist risking their job to gossip with a fat ginger woman with upper lip hair more prominent than any mustache I could ever hope to grow that you call "mom" about a 3 dollar purchase you just made.. On camera, so there's an audio visual record of your rights being violated. But who could blame that pharmacy tech or pharmacist? Shit I'd have thrown 4 years of higher learning down the drain as it held hands with my career and retirement plan too just to squeak your scary ass out to one of your fat ugly family members. We get it, you just can't even take the risk, the nothing you have going on is too much to risk. Yup, there's no denying were better off treating are bodies like pin cushions. At this point I could pull something sharper than what we've currently got from a public men's restroom, sharps box.."

Junky 2's lip quivers as he sniffles when he should wipe his damn nose and pulls out a brand new unopened bag of insulin syringes and says sadly with a shakey, crackling voice: "I received a diagnosis of type one diabetes yesterday at my doctor's appointment. "
a ShooterMcGavin by JunkboxHero April 25, 2025
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trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
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a ShooterMcGavin • A.D.A.M. • A • A.B.I. • a-cab • a-rab • A.F.I. • A-Town • a.d. • A B
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British slang for a scientist or technical expert, esp . when the speaker is not certain of the expert’s specific field of study. Not necessarily derogatory, but typically used by persons without a technical background. In the US, the equivalent would be “egghead”, “squint”, or “geek.”

Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.
According to the boffins downstairs, the murderer used a serrated blade.
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Pee Calculus

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I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.
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Literally "dirty" pronounced with a West Indian accent. Can also have a positive connotation, for example Sean Paul's album title "Dutty Rock".
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or, in a positive usage:

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Ajumma wait a moment
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