witch's brew

NOUN
12 LETTERS · STARTS WITH W

witch's brew is a valid 12-letter word worth 23 points in Scrabble and 24 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
W4I1T1C3H4'0S1B3R1E1W4
4 + 1 + 1 + 3 + 4 + 0 + 1 + 0 + 3 + 1 + 1 + 4 =23 PTS
DOUBLE WORD → 46TRIPLE WORD → 69
MEANING

What does witch's brew mean?