Is “Wham” a Scrabble word?
Yes
WHAM
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 Wham
/hwæm/
noun
1.A forceful blow
2.The sound of such a blow; a thud
verb
1.To strike or smash (into) something with great force or impact