surprise party

noun

1. a party or celebration planned for someone as a surprise.
2. something that surprises someone.

Word History and Origins

Origin of surprise party¹

First recorded in 1835–45

Example Sentences

Prince William went to see Mr Gardner at his home in Leeds, before taking him to the city's Headingley cricket ground for a surprise party with cricketing stars.

From BBC

Becker remembers employees’ birthdays with gifts or, in the case of Biltmore public relations director Victoria King, with a surprise party on Tuesday night at a Mexican restaurant.

From Los Angeles Times

His family threw him a surprise party to celebrate his 100th birthday on 13 January.

From BBC

Walking the kennels with Blackwell feels like arriving at a surprise party with an exceptionally gregarious guest of honor.

From Los Angeles Times

“Gracie ran as a candidate of the Surprise Party,” Segal wrote.

From Seattle Times