pull in one's horns

VERB
19 LETTERS · STARTS WITH P

pull in one's horns is a valid 19-letter word worth 20 points in Scrabble and 26 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
P3U1L1L1I1N1O1N1E1'0S1H4O1R1N1S1
3 + 1 + 1 + 1 + 0 + 1 + 1 + 0 + 1 + 1 + 1 + 0 + 1 + 0 + 4 + 1 + 1 + 1 + 1 =20 PTS
DOUBLE WORD → 40TRIPLE WORD → 60
MEANING

What does pull in one's horns mean?

VERB · 1 SENSE
1

Make a retreat from an earlier commitment or activity.