Draenei are blue humanoids with tentacles sticking out of them and goat hooves. They traveled from Outland/Draenor to Azeroth on a dimensional spaceship called the Exodar and crash-landed on Azuremyst Isle.
So, basically, they are goats from space.
2) A fandumb nickname for draenei, coined by people who are confused about their origin and think anything with horns and hooves is a goat.
"Because they're from space, and they have horns and hooves."
"If they're from space, so are orcs. And...anything with horns and hooves is a goat? I'll be sure to tell your friends who play tauren that."
"Don't you dare!"