Butt Breather 

An unconscious person... but is still breathing.

Paramedics: "On scene with a 38 year old female unconscious but breathing."
Nurses in the ER: "We got another butt breather."

Butt Breather by anonymous April 22, 2022

Butt Breather 

A person who is just the worst.

"I hate Nancy. She's a total butt breather."

Butt Breather by greenhairedturtle May 26, 2018

Butt Breather

A person who still smokes in 2025

The term draws from the 2025 “butt breathing” (enteral ventilation) human trials, where scientists tested delivering oxygen through the rectum to patients whose lungs could no longer function properly.

“Quit hacking up a lung, you butt breather.”
“Don’t queue up yet, the butt breather needs his smoke break.”
“Even with all the new research and treatments out there, he’s still a butt breather.”
“She says she’s quitting next week — classic butt breather line.”

Butt Breather by 219cry0 October 23, 2025