la-di-da

American  

[lah-dee-dah] / ˈlɑ diˈdɑ /

Or la-de-da,

interjection

1. (used as an expression of derision directed at affected gentility or pretentious refinement.)

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adjective

1. affected; pretentious; foppish.

   a la-di-da manner.

noun

1. an affected or pretentious person.

2. behavior or speech characterized by affected or exaggerated gentility.

la-di-da British  

/ ˌlɑːdiːˈdɑː /

adjective

1. informal  affecting exaggeratedly genteel manners or speech

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noun

1. a la-di-da person

Etymology

Origin of la-di-da

First recorded in 1880–85; derisive imitation of affected, pseudo-elevated speech

Example Sentences

Her catchphrase, “Oh well, la-di-da, la-di-da,” became iconic.

From Los Angeles Times

Ms. Keaton’s la-di-da breeziness was one of her most sneakily beguiling qualities; she came across as the best friend you’d love to confide in because you knew she didn’t hold herself higher than you.

From The Wall Street Journal

“If you send him here, to this la-di-da school, he’ll forget who he is and be afraid of his own people.”

From New York Times

"At the risk of sounding la-di-da, this is, truly, my Proustian madeleine."

From Salon

And then, la-di-da, they’ll go back to pretending this is a normal presidency rather than a runaway train.

From Washington Post