Flex Day

December 26th is flex day. Show off all of your expensive items to your friends. You can also flex with the new items you got at Christmas.

"Billy it's December 26th which means it's flex day, I bet you don't have the iPhone 11 Pro Max."
Billy answered while holding back tears, "you're right Joe, I don't."
Billy replied, "wait, who's Joe?"

by Andy Andy October 27, 2019

Flex tape

This thing can literally fix anything! It could have probably stopped the Titanic from sinking, too bad Alan Swift wasn't alive.. unless 🤔

Person 1: Dude I got some flex tape and it can fix anything!
Person 2: No way! Can it fix my life?
Person 1: I'm afraid not...
Person 2: Dang it.

by Apersonthathasnothingbettertod April 12, 2020

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

Flex

To flex is to show off that you have more, or you are better at something.

Another kind of flex is to tighten a muscle.

Person 1: "I'm soooooooo much better at this, I mean, look at me! *gets an unbeatable high score*"
Person 2: "Bitch stop flexing"

by ShxdyNeo September 20, 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