screwball

[ skroo-bawl ]
/ ˈskruˌbɔl /

noun

Slang. an eccentric or whimsically eccentric person; a nut.
Baseball. a pitched ball that curves toward the side of the plate from which it was thrown.

adjective

Slang. eccentric or whimsically eccentric: What a screwball idea!

Origin of screwball

1865–70; 1935–40 for def 2; screw + ball1

Example sentences from the Web for screwball

British Dictionary definitions for screwball

screwball
/ (ˈskruːˌbɔːl) slang, mainly US and Canadian /

noun

an odd or eccentric person

adjective

odd; zany; eccentric