Fartbeat
The way you can tell if an animal or person is still alive when they look asleep/dead, because they pop a fart.
Johnny: "Hey man I think shes dead, or passed out, I dunno!"
Marty: "Eww hear that... shes just farted"
Johnny: "Yeah man shes definitely got a fartbeat"
Marty: "Eww hear that... shes just farted"
Johnny: "Yeah man shes definitely got a fartbeat"
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