WHat word could fonz not say? he could get it out of his mouth. Was it sorry or wrong.

Both! Fonz always said "I'm sincerely s--- or I was wr---- but both words wouldn't come. In "My Favorite Orkkian" Fonz also couldn't say you win! Instead he said w-- & had Ritchie say it for him. Are there other words Fonzie couldn't say? Or is that it?