# flex one's muscles

> English word · Verb

## Definitions
1. To tense and bend one's flexor muscles.
2. To show off one's strength or skills.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/flex-one-s-muscles