Is “Mook” a Scrabble word?
Yes
MOOK
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 Mook
/muːk/
noun
1.A disagreeable or incompetent person.
2.An anonymous foe that appears in large numbers and is readily dispatched by the hero.