buck up - definition and synonyms

phrasal verb [intransitive/transitive]
present tense
I/you/we/theybuck up
he/she/itbucks up
present participlebucking up
past tensebucked up
past participlebucked up
  1. 1
    informal to try to make someone happier, or to become happier

    I took him out to lunch to try to buck him up a bit.

  2. 2

    buck up


    buck your ideas up

    British spoken used for telling someone to try harder
See also main entry: buck