nothing doing

13 LETTERS · STARTS WITH N

nothing doing is a valid 13-letter word worth 18 points in Scrabble and 22 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
N1O1T1H4I1N1G2D2O1I1N1G2
1 + 1 + 1 + 4 + 1 + 1 + 2 + 0 + 2 + 1 + 1 + 1 + 2 =18 PTS
DOUBLE WORD → 36TRIPLE WORD → 54
MEANING

What does nothing doing mean?

1