Used to show an extreme amount, or high degree of a quality; extremely. Much like hella, mad, dummy, wicked etc.
Also means not showing intelligence, however this is the urban dictionary not the dictionary dictionary.
Guy: these horses be stupid long
Not that guy: bro that's a giraffe
"Oh you see that bitch over there? They're fucking stupid Lmao die in a hole"
having or showing a great lack of intelligence or common sense.
Aniya williams and Ashley simplice are very stupid girls
The word stupid. Why did you look this up?
guy 1: i just looked up stupid in the urban dictionary
guy 2: youre stupid