When someone toots in a car full of people and doesn't warn the passengers; leaving them in a state of near unconsciousness due to the unbearable odor.
In order to snap out of the toot coma, one must fully unroll their window and proceed to hang out of it from the belly button up, similar to the action of a dog catching the breeze.
Amber: "Sarah, when you go on a trip with Krystle tomorrow, be careful she doesn't put you in a toot coma."
Sarah: "What should I do if I start to smell something?"
Amber: "Get your head out that window right away or suffer the consequence."