Define Heyday Meaning

Heyday

Elvis Presley had a heyday in the 60's and the 70's.
By Liane
Heyday-hair
A noticeably out of date hairstyle, usually attributed to those in their middle age, reflecting one's heady youth.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 Anica