A measurement of size used for various things. The smaller the gauge the larger the object is. In the case of Shotgun bore size, 12 gauge is essentially .729 caliber (or fractions of an inch) in diameter.
"Have you ever fired a 1oz deer slug from a 12 gauge? Ouch that makes most guns feel like BB-guns after that." -Some guy that just tried 12 gauge slugs
by Shoeless Joe April 2, 2007
Get the 12 gauge mug.
Im gonna bust in there with a 12 gauge and blast some ass
by REBEL_AU May 12, 2003
Get the 12 gauge mug.
the size of a plug
not a verb. you can not gauge.

you can stretch a piercing you can not gauge it. it would be like saying "I'm going to large" its what Sizes are referred to. NOT a verb.

the bigger the number the smaller the hole. 18ga is a standered ear piercing size.. when the numbers get smaller ex, 16, 14, 12... it means the hole is bigger.

i have a 12 gauge piercing
by dbarbdwire December 20, 2006
Get the 12 gauge mug.
Another word for roadhead.
(Performing oral sex on the driver of a car)

People often say it when someone says they want to ride in the front seat of the car.
"12 gauge!"
by Gaby Young September 1, 2006
Get the 12 gauge mug.
12 Gague Sawed-off Shot Gun OR just a 12 Gague Shotgun
Makaveli in this killuminati all through ya body blows like a 12 Gague Shotty -2Pac "Hail MAry"
by AC May 10, 2003
Get the 12 Gauge shotty mug.
When you blow someone's head apart with a shotgun, mainly by shooting them from under the jaw.
If he watches me and her fuck one more time, I'll give him a 12 gauge facelift.
by The Annonomys December 13, 2013
Get the 12 gauge facelift mug.
The act or result of blowing someone's chest open with a shotgun.
"If any of those fools come through the door, I'm gonna give them a 12-Gauge Thoracotomy!"
by Big Dick at Nick January 13, 2022
Get the 12-Gauge Thoracotomy mug.