'mousey' definitions:

Definition of 'mousey'

(from WordNet)
adjective
Infested with mice [syn: mousy, mousey]
adjective
Of something having a drab pale brown color resembling a mouse; "a mousy brownish-grey color"; "mousy hair"; "mouse- colored hair" [syn: mousy, mousey, mouse-colored, mouselike]
adjective
Quiet and timid and ineffectual [syn: mousy, mousey]