make someone's day

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make someone's day (third-person singular simple present makes someone's day, present participle making someone's day, simple past and past participle made someone's day)

1. (idiomatic) To make someone happy, or be a source of satisfaction, for the rest of the day.

   Synonyms: cheer up, perk up; see also Thesaurus:gladden

   Thank you for the unexpected gift. It really made my day.

   • 1983, Joseph Stinson, Sudden Impact (motion picture), spoken by Harry Callahan (Clint Eastwood):

     Go ahead. Make my day.

• daymaker
• not give someone the time of day