Definition of flex
- an exaggerated need to flex his political muscles
- —J. P. Lash
He flexed the muscles of his right arm.
a material that flexes easily
First Known Use: circa 1521See Words from the same year
First Known Use: 1905See Words from the same year
: to bend (a body part)
: to move or tighten (a muscle)
What made you want to look up flex? Please tell us where you read or heard it (including the quote, if possible).
of yeast or being unsettled or frivolous
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