daddy-o

Or dad·di-o

[dad-ee-oh]

noun

1. Slang.,  daddy.

2. Older Slang.,  a term of familiar address to a man, originally used by jazz musicians to display camaraderie.

Word History and Origins

Origin of daddy-o¹

daddy ( def. ) + -o ( def. ); daddy-o def. 1 was first recorded in 1910–15; daddy-o def. 2 was first recorded in 1940–45.