The Best Scrabble Word, Ever

My daughter and I were playing Scrabble this afternoon. She laid down a word - MOBBLERS - which used up all her tiles and covered a triple-word square. Busily starts to count up her score.

Me: Erm, I'm not sure that's a real word.

Da: *Frowns*, fetches the dictionary.
So, like, I'm not allowed to have it?

Me: *Shakes head*

Da: But if it was a real word, it would be the Best Scrabble Word, Ever!

Great, my daughter has become the Donald Trump of the Scrabble board 🤣🤣🤣