Coal Mine 

A Coal Mine is an insult from a friend or family member that uses an embarassing or deep secret of your's to hurt or embarass you. Usually used in a large crowd (where it has more exposure to others.) or to use against you.

1. Bill doesn't have a girlfriend anymore because his brother Coal Mined him in front of her.
2. "Hey Bob, get me a drink."
"Why should I?"
"Hmm... Perhaps you've told me something I can Coal Mine you with."

Coal Mine by Buffalo Puppy July 25, 2009

Coal-mine

Euphemism for rectum or anus, specifically when referring to anal sex.

I went out with Jill last weekend and I stuck it in her coal-mine.

Coal-mine by Pook420 April 28, 2009

canary in a coal mine

The thankless task of being the first one to take a hit, from the practice of coal miners of bringing down a caged canary to see if there's dangerous gas below

I don't know if this alleyway's safe, and I ain't no canary in a coal mine.

canary in a coal mine by Nick Cusa September 20, 2006

Shamokin coal mine 

When a kid from northern PA takes a shit on an ice cube tray freezes the shit then puts the cubes in a friend's asshole whilst trying to light the cubes like coal

Dominic got tired of Duncan's crap so he gave him a shamokin coal mine

Shamokin coal mine by Culatr August 19, 2018

Headlamp in a coal mine 

One white guy among a lot of black guys.

"Have you guys seen Derek Carr on the Oakland Raiders. Man, being the only white guy is like being a headlamp in a coal mine."

Headlamp in a coal mine by DragonsNest April 10, 2015

adani (coal mine) 

A coal mine that fucks up the Great Barrier Reef

Stop Adani (coal mine)

adani (coal mine) by Mr.Cheezebrgr April 18, 2020

West Virginia Coal Mine 

When you punch a stripper in the face, then bend her over and rape her ass and smear your cock on her forehead.

Nick was so drunk at the strip club last night, he gave candice a West Virginia Coal Mine

West Virginia Coal Mine by JMoregon January 17, 2007