More than the "best". It's a combination of extraordinaire, amazing, exquisite, outstanding, wonderful, marvelous, magnificent, superb, first-class, in addition to beautiful, dazzling, adorable, delightful and lovely!
Example:
Mom: "That's me, the Chefest Chef Juju!"
Me: "No mom, you can't keep making up your own words to compliment yourself, you narcissist!"
Mom: "That's me, the Chefest Chef Juju!"
Me: "No mom, you can't keep making up your own words to compliment yourself, you narcissist!"
by Hot fiyah101 May 12, 2020