A term used to describe someone behaving in a bewildered, confused, or dazed manner from having been physically, mentally or emotionally punched.
Commonly used phrase for Dementia pugilistica - a neurological disorder which may affect boxers and wrestlers who receive multiple dizzying blows to the head.
A phrase sometimes used to explain dazed behavior.
"He lost a fight tonight, his girlfriend broke up with him, and he's getting evicted tomorrow. He's punch drunk, give him a break!"