dummy up

VERB
8 LETTERS · STARTS WITH D

dummy up is a valid 8-letter word worth 17 points in Scrabble and 21 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
D2U1M3M3Y4U1P3
2 + 1 + 3 + 3 + 4 + 0 + 1 + 3 =17 PTS
DOUBLE WORD → 34TRIPLE WORD → 51
MEANING

What does dummy up mean?

VERB · 1 SENSE
1

Refuse to talk or stop talking; fall silent.