my bestest 

Someone who's better than the person you'd call the "best". This person however is the bestest out of all of them.

She's my bestest
That girl over there?That's my bestest!

my bestest by gdogxo February 18, 2017

mobestest 

better than best

those fish tacos were mobestest

mobestest by The real Hillbilly March 19, 2010