Flat Flex

When someone attempts to flex but it falls flat; not a single person is impressed.

Jeff was caught bragging about that one girl he kissed 4 years ago...OMG what a Flat Flex!

by ShortStackB January 25, 2020

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

relationship flex

When somebody flexes on the fact that he/she is in a relationship. This type of behaviour usually includes having interactions with a partner that is supposed to be private for example kissing. Instagram pictures where the couple is making out can also be considered this. This type of behaviour is usually quite despised and cringed at since it makes everyone feel uncomfortable, no matter the observer’s status (single or not).

Have you seen Jake’s new insta photo with his girlfriend. It’s so obvious it’s just a relationship flex. Jeez, it was so cringe.

by rudi.k July 23, 2019

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

sex-flex

A former lover, present friend, who one occasionally has sex with.

If it weren't for my sex-flex, I wouldn't be getting laid at all.

by Kaichester August 29, 2009