straighten up
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straightened up; straightening up; straightens up
Definition of straighten up
1 : to make (something) organized or tidy : to put (something) in order
They straightened up the house after the party.
2 : to move the body to an upright position
Straighten up. There's no excuse for slouching.
3 US : to improve in behavior
You need to straighten up, young man.
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