SHADDUP is a playable word

shaddup Scrabble® Dictionary

interjection
— used to silence someone
60 Playable Words can be made from "SHADDUP"
   2-Letter Words (10 found)
   3-Letter Words (28 found)
   4-Letter Words (18 found)
   5-Letter Words (2 found)
   6-Letter Words (1 found)
   7-Letter Words (1 found)