Adjective. The opposite of antsy. If someone says I’m very antsy then you say why aren’t you uncley?
I feel restless. I’m antsy. I’ll help you unwind. How? Well you said you’re feeling antsy. Yeah so? Well why aren’t you feeling uncley? Haha
To do something in a fashion particularly befitting of the phrase "uncley-done".
Boy, Jimmy, that science project of yours sure was uncley-done.