or bust

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(somewhere or something) or bust

An expression used to indicate that someone will not stop trying until they arrive at a certain place or achieve a certain goal. Ever since he was a little boy, it's been the Marine Corps or bust for Tom. We've saved up everything we had to make this move, so it's San Francisco or bust! I spent the whole off-season training my hardest and refining my swing, so it's major leagues or bust next season!
See also: bust
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.

... or ˈbust

(informal) used to say that you will try very hard to get somewhere or achieve something: For him it’s the Olympics or bust.
See also: bust
Farlex Partner Idioms Dictionary © Farlex 2017
See also: