one-upmanship

Другие идиомы:

• out of one's shell
• on one's heels
• hole in one
• back to square one
• one's bark is worse than one's bite
• out of one's element
• on the one hand
• off one's chest
• one and the same
• one-two
• in one fell swoop
• on one's own time
• of one mind
• on one's honor
• one of these days