have one's ass in a sling and have got one's ass in a sling 30913

have one's ass in a sling and have got one's ass in a sling
Sl. to be dejected or hurt; to be pouting. (Potentially offensive. Use only with discretion.) She's got her ass in a sling because she got stood up. So you didn't get a perfect score. Why do you have your ass in a sling?