"The Warriors" where portraid like "proto-punk-hip-hop-hard-rock" looking gang members from NY/Coney Island... Not really what I would refer to as hippies, but similar with the long hair and all, a hybrid mix maybe?
Bopper
One who often fist fights, or is often willing to fist fight; a street fighter, often affiliated with a gang. Derived from the slang verb "bop", which means: to punch. Strictly defined in the 1979 movie "The Warriors".
https://www.urbandictionary.com/define.php?term=bopper
I was not in New York at that time but it was where Punk and Hip-Hop kind of emerged from all the rubble and scum...
There is a pretty good documentarie from that time,
called "Rubble Kings":
https://www.imdb.com/title/tt1730714/
Cheers!
/FF