1 C1 slang
To display one's muscles or physical strength, typically in a gym or fitness context.
"He loves to flex out in front of the mirror after every workout."
flex out
C1 slang intransitive
To display or show off one's muscles or physical strength; or more rarely, to leave a situation.
In plain English
To show your muscles to other people, or to head out somewhere.
What does "flex out" mean?
2 meanings, ordered from most common to least. Color-coded by CEFR level.
2 C1 idiomatic slang
To leave a place (slang, very informal).
"The party was boring so we decided to flex out and find somewhere better."
Literal vs figurative
Words literally mean
To flex (tense muscles) outward for display — fairly transparent in the physical sense.
Actually means
To show your muscles to other people, or to head out somewhere.
Usage tip
Very informal slang. 'Flex out' meaning to show muscles is mostly used in gym culture. The sense of 'leaving' is extremely informal and rare.
Words that pair with "flex out"
Natural word combinations native speakers use most often.
gym muscles arms stage competition
How to conjugate "flex out"
The five tense forms you'll use most often.
Base
flex out
I/you/we/they
3rd person
flexes out
he/she/it
Past simple
flexed out
yesterday
Past participle
flexed out
have + pp
-ing form
flexing out
continuous
Hear "flex out" in the wild
Listen to native speakers using "flex out" in real YouTube videos — click a clip to watch it on Looplines.
Keep exploring
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