pecker flex

when a man feels the need to one up another person who is challenging his position or masculinity

Sean felt the need to pecker flex when his buddy tried to outlift him in the gym.

by realityseeker May 1, 2019

feather flexing

Showing off in short amount of time

While I was presenting my project, the student across from me thinks he can start feather flexing by cutting me off and asking all these questions.

by JG.F.AV November 3, 2019

Dickhead Flex

Showing off about something you shouldn't be showing off about.

Trust me, Matty will be dickhead flexing on his date tonight.

by Snuffercakes June 3, 2015

passively flexing

flexing, but the person who is flexing is doing it is unaware that they are flexing

Person 1: Yeah, I have a $4500 PC. It has a 3090 in it.
Person 2: Stop fucking passively flexing, you dickhead.

by Ding dong, the bitch is dead! November 3, 2021

Flex Off

When a man gives himself a prostate orgasm and ejaculation by laying on his stomach and flexing his ass muscles up against his prostate to stimulate it. This can be done when the penis is either erect or flacid, and nothing needs to go inside your rectum. It's like bottoming solo.

Luke doesn't jerk off, he flexes off. Why can't you masturbate like everybody else does, Luke? Why do you have to figure out ways to have better orgasms and keep this shit a secret, Luke? I want to flex off too. Wow I bet Luke is great in bed, he knows all kinds of secret tricks.

by IcyHot June 9, 2017

twitter flex

To show off on social media (mostly Twitter hence the name) but since your on social media people can't tell if your lying. But if it's Twitter flexing then it is most definitely a lie

Guy1: holy shit this guy on twitter got like 100 coupes!
Guy2: boy that's a Google image. He's twitter flexing.

by Mc BushPig June 16, 2017

booty flex

When a women is in a split position, or a squat or on there knees, flexes or contracts her booty muscle. This is a type of twerk also known as booty control.

Did you see that booty flex! She has serious muscle control.

by dj hamid November 9, 2014