Definition of do–or–die
1 : doggedly determined to reach one's objective : indomitable
2 : presenting as the only alternatives complete success or complete ruin a do–or–die situation
First Known Use of do–or–die
DO–OR–DIE Defined for English Language Learners
Definition of do–or–die for English Language Learners
: very determined
—used to describe a situation in which you have to do something or you will fail, lose, etc.
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