Just what it sounds
like. It's a sort of sleeve-type accessory that goes on your forearm, with a hole where your thumb goes. Supposedly used by "
emo" or "
goth" or "scene" people. They keep your arms all warm and fuzzy. They're nice for when you don't want to wear a sweatshirt, but it's too cool out to just have bare arms. (just saying, they're also good for those of us with scars on our arms..) Personally, I can't go a day without them.
P.S.
They're also seriously easy to make. If you have any knee-high socks (new or old), you can just
cut them and
cut a hole for your thumb (sewing that area is best so it doesn't wear out as fast), and
BAM! armwarmers.