Canary in the coal mine

When a guy sticks his whole cock in a girl's ass, creating an airtight seal. She then farts, creating a pocket of deadly gas. The man then attempts to cum without breaking the seal.

I think I got an infection after trying the "Canary in the coal mine" with Bridgette a few nights ago.

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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.

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Canary in a coal mine

When you drink moonshine with a chicken wing as your chaser.

Barkeep, can I have a canary in a coal mine, and can you make it boneless?