Verified answer

Same guy who decided to put a "double t" in the word "stutter"

maybe the person who made up the word was wanting the person to say lisp and see if that person had a lisp.. just maybe. but if not then i have no idea

I don't know, but at least when you say "I have a lisp" it will be obvious

It's better with an "s" than a "z"

wasnt me - I wanted to spell it 'lithp'

DRI