buck up (one's) ideas

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buck up (one's) ideas

To begin to put forth more effort in some area. You need to buck up your ideas and work harder in this class if you want the teacher to write you a letter of recommendation.
See also: buck, idea, up

buck up your iˈdeas

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buck your iˈdeas up

(informal) start to work harder or more efficiently; become more willing to do things: He’s been late every day for two weeks. He’ll have to buck up his ideas if he wants to keep his job.
See also: buck, idea, up