Is “Flapper” a Scrabble word?
Yes
FLAPPER
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 Flapper
/ˈflæpɚ/
noun
1.A young woman, especially when unconventional or without decorum; now particularly associated with the 1920s.