Definition: Wheezy: In Greek mythology, a type of horse that was said to be able to run at great speed and leap with a remarkable ease. It's often associated with lightning strikes as its name suggests (like "lightening wheezes"). The term is also used in other languages like Chinese, where it refers to a horse with the ability to jump or move quickly without stopping. Definition of 'Wheezy' - A type of horse that could run at great speed and leap with an amazing ease. It's often associated with lightning strikes.