（在困境中）保持振作，打起精神
to try to stay happy when things are difficult
As he left, he shouted to her to keep her pecker up.
Bad fortune like this would have destroyed many men, but he seems to have kept his pecker up.
The prospect of my son's wedding is the only thing keeping my pecker up at the moment.
Keep your pecker up, old chap. Things will work out in the end.
We helped her as much as we could, and encouraged her to keep her pecker up.
See also: pecker