Definition of hanch:
(v) :
(ambitransitive) To snap at something with the jaws.
(n) :
Obsolete form of haunch. [(anatomy) 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.]
(n) :
Alternative form of hance. [A curve or arc, especially in architecture or in the design of a ship.]