Someone who rides inline skates.
Comes from the name of the well known company Rollerblade.
Usually meaning someone into "agressive skating", which means people doing tricks on skates (slides, jumps, in places like streets, ramps or skateparks).
It's the equivalent of skater
(skateboarder), but on roller-skates.
Like for skaters, there should not be any link between this word and a specific music, clothing style, skill level, or whatever : It just describes someone who likes to have fun on inline skates.
"I met a new blader in town, he told me he would ride the park this afternoon, wanna come?"
A man who goes rollerskating a lot. He does that rollerskating very good because he is probably rollerskating for a long time. Like skaters, the bladers also do tricks and grind.
Mark is a great blader so we can expect to see a PC game called Mark's ProBlader in a year or two. :)
A blader is a person who roller blades very well. A blader is also a person who believes that rollerblading is not a sport, its a passion and a way of life.
me and my friends are such bladers