Top Definition
A noticeably out of date hairstyle, usually attributed to those in their middle age, reflecting one's heady youth.
Wow, did you see that guy with the Chachi hairdo? Nice heyday-hair dude.
by Diamond, C.S. July 10, 2008
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×