baby daddy

noun

slang

: the biological father of a woman's child

especially : one who is not married to or in a long-term, intimate relationship with the child's mother

Near the end, a very pregnant Sara watches as her baby daddy cozies up to a new girlfriend.

—Jessica Heslam, Boston Herald, 16 Jan. 2010

Word History

First Known Use

1993, in the meaning defined above

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