1 (also punk rock) [mass noun] a loud, fast-moving, and aggressive form of rock music, popular in the late 1970s:punk had turned pop music and its attendant culture on its head
(also punk rocker) [count noun] an admirer or player of punk rock, typically characterized by coloured spiked hair and clothing decorated with safety pins or zips:punks fought Teds on the Kings Road on Saturday afternoons
2North American informal a worthless person (often used as a general term of abuse):you think any of these punks they got fighting today could stand up to Joe Louis?
a criminal or thug:there’s never been a better time to take our streets back from the punks
US derogatory (in prison slang) a passive male homosexual:he determined to be made into no one’s punk
an inexperienced young person: [as modifier]:you were a nobody, a punk kid starting out
3 [mass noun] chiefly North American soft, crumbly wood that has been attacked by fungus, used as tinder.
1North American informal in poor condition:I felt too punk to eat
2relating to punk rock and its associated subculture:a punk banda punk haircut