haunch

Short definition from Wiktionary

Noun

1. 1
   The area encompassing the upper thigh, hip and buttocks on one side of a human, primate, or quadruped animal, especially one that can sit on its hindquarters.
2. 2
   The loin and leg of a quadruped, especially when used as food.
3. 3
   A squat vertical support structure.
4. 4
   A jerked underhand throw.

Verb

1. 1
   To provide with a haunch or supporting structure.
2. 2
   To throw with an underhand movement.