Definition of "goony" in English

adjective

1. Of or like a goon; thuggish; brutal.

2. (slang) Silly, crazy, foolish, stupid, or awkward.

   • After their prank was successful, the friends wore goony smiles on their faces for the rest of the day.

noun

1. (informal) a goon; a foolish, stupid, silly, or awkward person.

2. Alternative form of gooney (gooney bird, the black-footed albatross).