What is Jack-a-ninny?
1. Slang term, an idiot, nincompoop, lacking common sense. 2. An indolent person. 3. A cross between nincompoopand jackass.
1. Get back to work you jack-a-ninny!
2. Al is a frickin jack-a-ninny.
See idiot, nincompoop, incompetent, dumb, jackass