muscles up meaning

VerbBFmuscle upPRmuscling upPT, PPmuscled up
1. third-person singular simple present indicative form of muscle up.
More Examples
1. Used in the Middle of Sentence
  - We spent the summer trying to muscle up for football next term.

Meaning of muscles up for the defined word.

Grammatically, this idiom "muscles up" is a verb, more specifically, a verb form.

Part-of-Speech Hierarchy
1. Verbs
  - Verb forms
    - Verb singular forms
      - Third-person singular forms

Definiteness: Level 1

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Definite ➨ Versatile