A skater punk can be identified by his long hair, ripped denim, large "skate" shoes, and almost constant use of the word, "dude."
Skate or Die and so on...
Can be heard yelled from passing cars when trying to skateboard in small towns across the U.S. by Rednecks.
In most circumstance a term used by someone who has never actually stepped on a skateboard to define an entire culture as punks that skate.
May be a way for those whom would have wanted to skateboard at one time to associate with those whom did. Sometimes used by actual punk bands with a dwindling audience to boost records sales ala No Need for a name or avril lavigne in a lesser sense skater boi or whatever that garbage is.