The property of being screwy. Insanity, craziness, eccentricity.

plural of screwer

plural of Phillips screwdriver

(chiefly Canada) A type of screwdriver having a square tip, designed to drive a Robertson screw.

Resembling or characteristic of a screw (mechanical fastener).

(not comparable) That can be screwed (fastened mechanically). / (slang, vulgar) Suitable or desirable for sexual intercourse.

Fitted with a screw cap.

plural of screwball comedy

The degree to which something is screwable.

(UK, slang) A hammer.