Kara's muscular thighs made waves as she walked across the room and I couldn't help but admire them. I would define what they did as auto-flexing.
by Amelia Wysocki August 15, 2021

"Zack was totally "Gamer Flexing" about all his Platinum Trophies he got, but I don't believe him one bit."
by umber_hulk February 6, 2020

by JoeBass April 3, 2021

A muscle man, woman or thon that is into flexing in the gym and outside the gym with materialistic wealth and gym equipment, they are interested in futuristic fashion and anything Sci Fi.
by Baylien Culture December 29, 2021

you’re bragging and flexing ( to show off ) about something and it’s makes you sound weird and stupid.
EXAMPLE 1:
James: I slept with my girlfriend’s sister.
Alex: weird flex but okay .
EXAMPLE 2 :
Lucas: my wrist hurts from this new gold Rolex I bought, it’s heavy af .
Sophia: weird flex but okay.
James: I slept with my girlfriend’s sister.
Alex: weird flex but okay .
EXAMPLE 2 :
Lucas: my wrist hurts from this new gold Rolex I bought, it’s heavy af .
Sophia: weird flex but okay.
by N_BNB March 18, 2021

Also known as “rich people problems”, a “first world flex” is essentially a first world problem, but one that’s simultaneously boastful as well as whiny and arrogant.
“Yesterday Phil was complaining about how he didn’t know which camera he should look into on his new iPhone 11. I fucking hate him and his first world flexes.”
by face of mars November 18, 2019

The meaning of dumb flex is to flex as much as possible !! Like a stupid flex! Or crazy flex. Dumb flex is being lit in all your might!! Whether it be clothing cars jewellery or even just your aura! Show off what you can🤪
by AlRaz February 11, 2021
