Verb limber up has 2 senses
  1. limber, limber up - attach the limber; "limber a cannon"
    --1 is one way to attach
    Sample sentence:
    Somebody ----s something
  2. limber up, warm up, loosen up - make one's body limber or suppler by stretching, as if to prepare for strenuous physical activity
    --2 is one way to exercise, work out
    Sample sentence:
    Somebody ----s
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