What is Butt-ass?
1.
What you call someone you love who is being difficult with you in a playful way. Not to be used with anger. Just playful.
Quit poking me you Butt-Ass!
2.
Minnesota-cold; too cold to even think about being outdoors; automobiles are incapable of starting when it's butt-ass cold outside
Man, I just shoveled the driveway, and it's butt-ass cold out there today!