Define The Bestest Ever Meaning

Peyton:What's the bestest band ever?
Veronica: The All-American Rejects, duh!
Peyton: they are sooooo cool!!!!!!!!!!!!!!!!!!!!!
Veronica: I

Sierra is my best friend, my ride or die so therefore she is my bbfe.
She is my bbfe because she is my bestest best friend ever in the entire world.

Gerald is the bestest ever, everything he does best