buck up!

listen to the pronunciation of buck up!
English - English
To become encouraged, reinvigorated, or cheerful; to summon one's courage or spirits

I realized I needed to buck up and tackle the problem head-on.

Cheer up; take courage; take heart
To encourage or refresh; to hearten

I knew I had to try and buck up the rest of my team as well.

Hurry up; make haste
To pass on to higher authority for resolution. See also pass the buck

Instead of dealing with the customer's complaint himself, he just bucked it up to his boss.

To dress oneself up smartly; compare (obsolete) buck ("a fop, dandy")
If you tell someone to buck up or to buck up their ideas, you are telling them to start behaving in a more positive and efficient manner. People are saying if we don't buck up we'll be in trouble Buck up your ideas or you'll get more of the same treatment. = pull one's socks up
{f} gain courage; encourage, hearten; improve; hurry up; (Slang) make happy; (Slang) make more cheerful or joyful
If you buck someone up or buck up their spirits, you say or do something to make them more cheerful. Anything anybody said to him to try and buck him up wouldn't sink in The aim, it seemed, was to buck up their spirits in the face of the recession. = cheer up
gain courage
buck up!
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