A word used when you want to express something which is more than most.
Mostest is the word that tops “most” in all situations.
2. A great deal of whatever
Dan told Alison he loves something the mostest which completely wrecked her “most” or someone tells you “I love you most “ and you respond “I love you mostest” you win
More than any word with a similar meaning to most etc
“Love you most”
“I love you more”
“Yeah but I love you mostest”
“Okay that’s a lot, you win”