Definition of tra la in English:

tra la

exclamation

ironic
  • Expressing joy or gaiety.

    ‘off to his life, kids, and wife, tra la’
    • ‘Not your ‘arms in the air, getting drunk tra la la’ stuff.’
    • ‘I like all the costumes and decorations and tra la la fun… but… trick or treating.’
    • ‘It's the little things, the little things, the little things, tra la.’
    • ‘And, tra la la la la, I'm having lunch with her and dinner with him.’
    • ‘No more wondering whether to come out, to whom, how to phrase it, what their reaction would be, tra la la all that is over and done with.’

Origin

Early 19th century: imitative of a fanfare or of the refrain of a song.

Pronunciation:

tra la

/trɑːˈlɑː/