Is “Gabby” a Scrabble word?
Yes
GABBY
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 Gabby
/ˈɡæb.i/
adjective
1.Inclined to talk too much, especially about trivia.
Synonyms: chatty, garrulous, loquacious, talkative