Definition of blanks:
(adj) :
Free from writing, printing, or marks; having an empty space to be filled in.
(adj) :
(figurative) Lacking characteristics which give variety; uniform.
(adj) :
Abject; absolute; complete; downright; sheer; utter.
(adj) :
(figurative) Without expression, usually because of incomprehension.
(adj) :
Utterly confounded or discomfited.
(adj) :
Empty; void; without result; fruitless; futile.