To love someone more than the average person, when they say “I love you more,” hit them with “but I love you the mostest.” Case closed.
Faith: “I love you more!”
Me: “I love you the mostest”
mostest can be used for when you're trying to find a word bigger than most but you can't think of anything so you need to use mostest.
Its a word of endearing. When your significant other says something along the lines of "I love you the most" you can say "well, I love you the mostest"
"Hey babe, I love you so much"
"I love you most"
"I love you the mostest"