A means of escaping a very ugly one-night stand, who is asleep with your arm underneath them. Resulting from absurd drunkeness the night before, impairing your ability to judge the looks of a woman. Origin: If caught in a trap, a coyote will chew it's leg off to get away.
You should have warned me that I'd need to pull a coyote with that skank!
When faced with a daunting task, you decide to pass on doing it. From the childhood game of H-O-R-S-E. A game using a basketball and hoop between 2 or more players. The object of the game is not to spell the word, Horse. If you miss a shot, you have to take a letter and the loser is the one that spells the word horse first.
"Dude, I'm so hungover I'm going to have to take a letter on playing in that football game."