Definition of "goofball" in English

noun

1. (informal, often derogatory, sometimes endearing) A foolish or silly person or animal.

   • If that goofball would put half the effort into her studies as she does into her juggling, she might do very well.

2. (informal, pharmacology) A pill or tablet containing a pharmaceutical which has hypnotic or intoxicating effects, especially a barbiturate.

adjective

1. (informal) Silly.

   • He announced, with his usual goofball humor, that he'd like to marry me!