Did you know that this is as word? It is.
I know this because last week when Handsome Randy & I were playing Scrabble I had two 'Q's in my hand (Super Scrabble)and was desperate to get rid of at least one.
The word 'itch' had been played, I had a 'u' and it seemed like 'quitch' could be a word. Oh, and the 'Q' also happened to fall upon a quadruple letter score (again, Super Scrabble. So I took a chance & confidently laid down 'Q' & 'U' in front of 'itch'. I ended up with sixty some points and HR challenged the word. I nervously said, "Fine," and he looked it up.
Together we learned that "Quitch" is indeed a word, even in the official Scrabble Dictionary, and is the short word for Quick Grass.
And I won the game. By a long shot.