Grisham said the judge from N.Y. got a wild hair and set up his own outfit in Memphis After our marriage, my wife got a wild hair and got involved with the Nudist . Oct 26, 2007 - The first refers to or compares someone or something to the natural skittishness of breeding hares in spring, especially in March (ergo Lewis Carroll's inclusion of that creature in the Mad Hatter's tea party). To have a wild hair (up one's butt) is a vulgar expression indicating an obsession or fixation of some sort. The idiom to have a wild hair, which dates to the 50's, means you're itching to do something. It's pretty literal: just think about those itchy stray hairs under your collar after a haircut. This Slang page is designed to explain what the meaning of get a wild hair is. The slang word / phrase / acronym get a wild hair means. . Online Slang . Sep 22, 2012 - The idiom to have a wild hair, which dates to the 50's, means you're itching to do something. It's pretty literal: just think about those itchy stray hairs under your collar after a haircut. Definition of have a wild hair up one's ass in the Idioms Dictionary. have a wild hair up one's ass phrase. What does have a wild hair up one's ass expression . Dec 11, 2005 - I'm seeking a more precise definition than the vague one in my head of a 'wild hair'--as in a crazy idea or whim, I think. And where this phrase . Nov 6, 2001 - I always assumed it was 'Wild Hair' - as in wild hair up his ass . Saying somebody had a wild hare up their ass would just be a more . Feb 27, 2016 - But, that's actually the entire point of the saying: When you want to beat . around being crazy, my folks would say that we had a 'wild hair. I can only offer you my opinion on it by comparing it to a somewhat relative saying: stick up the ass. When someone is described as that, they're .