A pitch thrown with added pressure by the index finger and a twisting wrist motion resulting in a motion to the right when thrown by a right-handed pitcher
The screwball is not thrown much because it tends to damage pitcher's arms.
foolish; totally unsound; "an impractical solution"; "a crazy scheme"; "half-baked ideas"; "a screwball proposal without a prayer of working"
A genre of motion picture made in Hollywood in the 1930s and 1940s where opposites were juxtaposed; characterized by snappy dialog, and a blend of sophistication and slapstick