one-upmanship
one-up‧man‧ship /wʌnˈʌpmənʃɪp/
noun [uncountable]
attempts to make yourself seem better than other people, no matter what they do
one-up‧man‧ship /wʌnˈʌpmənʃɪp/
noun [uncountable]attempts to make yourself seem better than other people, no matter what they do