Is “Whatsit” a Scrabble word?
Yes
WHATSIT
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 Whatsit
noun
1.A thing (used in a vague way to refer to something whose name one cannot recall, or that one is embarrassed to say)
“Pass me one of those whatsits, will you?”