dumb-ass AmE
dumbass AmE
stupid-ass AmE

Come, there is that stupid ass from Missouri getting up.

"Lay on top of her, you stupid ass," she cried.

Nobody on earth would ever know I'd been a stupid ass.

You're just an old stupid ass and if you tried to, you'd hurt yourself or he'd get it away from you!

He don't like no broad treating him like he's a stupid ass.

I think he's afraid to show us what a stupid ass he really is.

I'll give you something to grin about, you stupid ass.

Most of the comments under his posts are about him being a stupid ass for commenting on something that he clearly didn't read.

Now you get your stupid ass out of here and let me figure out how.

"You want to get your stupid ass blown off?"