A term used to dehumanize short men. On the basis of this prejudiced term, a short man isn't allowed to do anything assertive, confident, or generally masculine without being accused of overcompensating or having short man's syndrome.
Whereas if a taller man exhibited the same exact behavior, nobody would bat an eyelash.
I rudely shoved that short guy at the bar out of my way, and he got all angry about it. Talk about short man's syndrome!