SLAPJACK is a playable word

slapjack Scrabble® Dictionary

noun
pl. slapjacks
a pancake
78 Playable Words can be made from "SLAPJACK"
   2-Letter Words (6 found)
   3-Letter Words (22 found)
   6-Letter Words (7 found)
   7-Letter Words (2 found)
   8-Letter Words (1 found)