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picker-upper

American  
[pik-er-uhp-er] / ˈpɪk ərˈʌp ər /

noun

Informal.
  1. something that restores one's depleted energy or depressed spirits; pick-me-up.


Etymology

Origin of picker-upper

1935–40; pick up + -er 1, joined pleonastically to both v. and particle