National flex your muscles day

April 19 is when you send a friend, partner or someone you trust a picture of you flexing ur muscles.

*sends a picture of big booty flex*

wow! Happy national flex your muscles day! Here is one too ;)

by Nukemaster69 April 19, 2022

Flex

Another term for event or gathering.

What times the flex?

by Lord mobius December 16, 2022

Pulled a Flex

Doing something perfectly/with finesse in order to complete a normally large task.

Yoooooo, I just Pulled a Flex on the math test today AND I didn't cheat on this one!

by Genowizard October 19, 2018

Dirty-Flexing

To flex, stunt, flaunt, or show off with something that is not really yours.

Friend 1: I saw your roommate on IG in the new Tesla model S self driving. Bro really getting to the money now.

Friend 2: I saw that post. Not hatin’ but that’s his uncle’s car. We drove to the club in it yesterday.

Friend 1: y’all Dirty-Flexing like a motherfucka lol… pick me up in it next time.

by 213JetSet February 11, 2023

Flex

a flexible insulated cable used for carrying electric current to an appliance.

"The electrician installed a new flex cable to connect the new electrical outlet to the main power source."

by Arminkshipper June 18, 2025

calf flexing

A guy flexes his calf's to get rid of his erection

Tim and Sam flex their calf's to get rid of there growing erections. Calf flexing

by Danceywhre February 29, 2016

flex tape

the tape the fixes anything!

Flex tape: IT DOES A LOT OF DAMAGE
Flex fans: FLEX TAPE! FLEX TAPE! FLEX APE!

by Meme Describer September 3, 2019