Circadian Backflip.

The circadian rhythm is the cycle that dictates what your body does when: secretions, sleep, awake, temperature fluctuations, etc; but most importantly, when it does those things.

A circadian backflip is something shift workers and people stuck on night shift experience, when they wake after dark, and go to sleep after dawn.

Person 1- "Where's Cornelius lately? I haven't seen him in months!"
Person2- "Me neither. Since he started his new job he's had a full-on Circadian Backflip. He looks just like Bela Lugosi now!"

by JayszunVanderwerff July 24, 2011

swing backflip

the swing backflip it is when someone does a back filp on a swing , this was made popular by student named Mia. She made the swing backflip popular

Student 1 : "Hey did you see that kid do that trick on the swing? we should try that!"

Student 2 : " Yeah , that trick that she did is called a swing backflip."

by Yuno Hatsune November 20, 2013

Backflip Insertion

The act of doing a backflip and landing it while sticking your penis into someone’s asshole.

My friend watches way too much Backflip Insertion

by FrenchRolls November 3, 2017

do a backflip

A nonchalant and sarcastic reply to someone who wants to kill themself.

Person 1: My life sucks. I feel like jumping off a roof...
Person 2: Do a backflip!

by Captain Pepperoni October 28, 2017

Screaming Backflip

Doing someone doggy style, and thrusting so hard that at one point she is flipped over your head so that she is behind you.

Man, i gave this chick a screaming backflip, she flew like eight feet!

by Christ tits March 29, 2008

Monkey Double Backflips

Extravagant and exotic sex techniques used by females to lock down a high value male.

She was with Thomas but he was kind of boring. So she also met with Sebastian from sales department who was making six figures, has a sixpack and a nice car. So she does monkey double backflips all over him to get herself in a better financial position if she continues this until he takes her as a wife.

by mstar1337 July 15, 2020

Carl Edwards Backflip

To stand on the top of one's car, cheer needlessly, and then backflip off the top of your car. A celebratory act.

He did a Carl Edwards Backflip after getting a date to the prom.

by WrestlerGuy May 11, 2013