Cold Bowl 

When you sit on the toilet and realize the seat is still up.

Dude the other night i was busting for a dump but when i sat down i realized i cold bowled myself.

Cold Bowl by uncle nigel December 20, 2012

Cold Bowl 

Smoking weed in a convertible. The opposite of a Hot Box.

We rode around in Kathy’s mom’s Cabrio. We decided to cold bowl it so the upholstery wouldn’t smell. I froze my ass off and got ash in my eye.

Cold Bowl by Kasey Keo December 7, 2018

coldbowl 

a glass pipe used to smoke meth, or ice, aka the "cold"; a glass tube with a bulge at the closed off end, and a hole in the top of the bulge for air flow. ice (cold) is heated inside the bulge until it is melted, and rolled back and forth producing vapors of the drug and inhaled. also as in "to do a coldbowl"

"Man, if you scorch my coldbowl, I'll pop a knot on that noggin."

if that shard-whore hits my coldbowl, she knows what she gotta do....

coldbowl by coldbowl June 3, 2007