Ewww that’s gross
“DOUBLE COYOTE UGLY”: Upon awakening & discovering that a cat has done its business in your mouth while you slept, and surveying the visage of your bed-mate in the harsh light of dawn, instead of waking her up to move you chew off your arm to free yourself and chew off the other arm to make sure it never happens again.
You chew off the free arm first, for practice, to make sure that you don’t wake her while chewing on the encumbered arm.
(preceded by, and see: BEER GOGGLES, WAR PAINT)