What is Mason Jar?
1.
A measure of the diameter of the anal sphincter.
Holy shit! Goatse's ass is like 3 mason jars wide!
2.
the finest in beer drinking containers, regardless of whether you're a hick, redneck, or hillbilly
We had a dog named Bocephus livin' in the front yard.
He liked sleepin' out on top of the car.
He drank beer out of a Mason jar
-Kenny Chesney "Keg in the Closet"
3.
(n.) A college student receptacle for fecal material when the dorm bathrooms are disgusting.
I'm out of trapper keepers, so I just took a shit in my brand new mason jar.
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4.
A. A jar for masonry
I hold my masonry in my mason jar.
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