Is “Slapjack” a Scrabble word?
Yes
SLAPJACK
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Slapjack
noun
1.A type of pancake, or flapjack.
2.A simple card game similar to snap.