one-upmanship

noun
one-up·​man·​ship | \ ˌwən-ˈəp-mən-ˌship How to pronounce one-upmanship (audio) \
variants: or less commonly one-upsmanship \ ˌwən-​ˈəps-​mən-​ˌship How to pronounce one-upsmanship (audio) \

Definition of one-upmanship

: the art or practice of outdoing or keeping one jump ahead of a friend or competitor engaged in a round of verbal one-upmanship

First Known Use of one-upmanship

1952, in the meaning defined above

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More Definitions for one-upmanship

one-upmanship

noun

English Language Learners Definition of one-upmanship

: behavior in which someone tries to get an advantage by doing, saying, or having better things than someone else