In the gay world Bears are generally hairy fatasses, unfortunately normal sized hairy gay males get lumped in there too. Yes, the gay community is sometimes weird and fucked up. There's also a group called Otters/Wolves (hairy guys who are thin/swole) but most gays just use the blanket term Bear...  Also, real bears are legitimate killing machines despite being massive. I would never want to encounter one in to encounter one in the wild.