play tricks

VERB
11 LETTERS · STARTS WITH P

play tricks is a valid 11-letter word worth 21 points in Scrabble and 23 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
P3L1A1Y4T1R1I1C3K5S1
3 + 1 + 1 + 4 + 0 + 1 + 1 + 1 + 3 + 5 + 1 =21 PTS
DOUBLE WORD → 42TRIPLE WORD → 63
MEANING

What does play tricks mean?