Is “Deffo” a Scrabble word?
Yes
DEFFO
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 Deffo
adjective
1.(usually with "for") Definite.
adverb
1.Definitely.
“He told me that he's deffo going to be there tonight.”