There are 2 results of your search for skeg2.
skeg1
surfer (a skeg is another word for the fins on a surfboard): Skegs suck! [from skeg the fin of a surfboard, the afterpart of a ship's keel, originally a word borrowed from Dutch]
Contributor's comments: Common term to describe surfers, usually derogatory, particularly those with bleached hair. Particularly common on the Gold Coast.
skeg2
to catch your clothing on a nail or other protrusion so that it pulled a thread. Used all the time when I was growing up in Bendigo, doesn't seem to be used anywhere else: Oh no, I skegged my jumper.