/ pʌŋk; NAmE / noun
1.
(also ˌpunk ˈrock ) [ U ] a type of loud and aggressive rock music popular in the late 1970s and early 1980s :
a punk band
2.
(also ˌpunk ˈrocker ) [ C ] a person who likes punk music and dresses like a punk musician, for example by wearing metal chains, leather clothes and having brightly coloured hair :
a punk haircut
3.
[ C ] ( informal , especially NAmE ) a young man or boy who behaves in a rude or violent way
SYN lout
For more information see the Cultural Guide
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WORD ORIGIN
late 17th cent. (originally referring to a soft, crumbly wood attacked by fungus and used as tinder): perhaps, in some senses, related to archaic punk prostitute , also to spunk .