"Worstest" seems to be a morphological problem. "Most least" could be permissible, if somewhat exotic sounding, I think, if "least" is read with its adjectival meaning―"used in names of very small animals and plants,…
"Worstest" seems to be a morphological problem. "Most least" could be permissible, if somewhat exotic sounding, I think, if "least" is read with its adjectival meaning―"used in names of very small animals and plants,…