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Definition of boo-yah exclamation from the Oxford Advanced Learner's Dictionary

boo-yah

exclamation
 
/ˈbuː jɑː/,
 
/ˈbuː jə/
 
/ˈbuː jɑː/
(also booyah)
(North American English, informal)
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  1. used to show that you are very pleased about something, especially when you win or are right
    • With a scream of ‘Boo-yah!’ and a fist pump, she cried from joy that she had won the case.
trait
noun
 
 
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