Sudden decision that is not expected.
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 Movement
by Samon August 15, 2006
An action of a sudden & unexpected nature. Something done by a person that is uncharacteristic for that person to do.
"Sam out of nowhere got a wild hair up his ass & moved to Dubai to study Scandinavian Moose!
by tokabowla January 31, 2009
A sarcastic way of saying/admitting that you made a mistake, or did something stupid/ irresponsible.
Homeowner: "I didn't ask for that! I'm not paying for it!"
Carpenter: "I'm sorry mam, i thought it would be a nice touch. Guess I had a wild hair up my butt on that!"
by talk2me-JCH2 April 18, 2021
A Boomer expression meaning random urge to do something immediately
"I don't know why Gretchen ate that whole bottle of Sriracha, must've been a wild hair,"
"Who is Gretchen grandpa? Also put your pants on!"
by Anotherdudeguy December 28, 2022