boss up

boss up

slang To begin to act or approach something with resolve, determination, and all of one's effort. If I really wanted that promotion, I knew I was going to have to boss up. You'll need to start bossing up if you want to get your idea off the ground.
See also: boss, up
Farlex Dictionary of Idioms.
See also:
  • an all-out effort
  • better (to be) safe than sorry
  • better safe than sorry
  • be remembered as (something)
  • be remembered as/for something
  • be replaced by (someone or something)
  • be replaced with (someone or something)
  • at (one's) doorstep
  • at doorstep
  • at somebody's expense