1. There's a serial killer going around, a major whacko.

2. Stu (Beaune is now preparing for any whacko visitors from San Gabriel Valley!) Reply Jan 3rd, 2016, 02:49 PM #15 jamikins

3. Slang), quirky, idiosyncratic, off-the-wall (slang), freaky (slang), outré, wacko or whacko (informal) Vegetarianism has shed its Cranky image.