Rasengun 

the ultimate Jutsu that Naruto would use to kill Sasuke if he weren't such an Usuratonkachi

Sasuke: Chidori!!
Naruto: RasenGUN!!!!
proceeds to shoot Sasuke and kill him.

Rasengun by 3.1416two2 April 13, 2022

Rasengan 

When you're doing a girl and when you're about to ejaculate you pull out and make the hand movements then cum on your hand and swirl it. You shout RASENGAN!!! and slam it into her face while swirling and twisting it.

Just force her head through the mattress!

I gave her a hard Rasengan to the face... She wanted me to Chidori her instead

Rasengan by windwaker123 November 30, 2010

rasengan 

A technique that involves focusing chakra to the hand and making it swirl in a tight spherical shape.

Technique used by the fourth Hokage, Jiraiya, and Naruto.

Devastating power, far beyond Kakashi's chidori (lightning edge).

Naruto: "RASENGAN!"
Kabuto: *AHHHHHHHHHHHHHHHHH*

rasengan by meestah bling bling sparkle sparkle August 7, 2004

rasengan dat hoe 

When you repeatedly put your hands on and off your penis in a circular motion during intercourse. Before you ejaculate hold both hands on the penis and force the last bit of seamen out in a pounding motion. The motion of you hands is similar to the way that naruto churns chakra in the anime naruto. After you cum on said “hoe” it is normal to shout out I rasengan dat hoe after ejaculating and then yelling believe it

I was with this fine ass kinoichi last night but I could not keep my penis in. so I had to put my hands on the 3 inch but the bitch kept moving. I ended up having to keep inside her by moving my hands around my dick allot. In the end though I rasengan dat hoe. Believe it

rasengan dat hoe by raintwililight March 22, 2008

Rasengon

When having sex keep a balloon on you. you'll ejaculate in the balloon tie it up then scream RASENGON!! as you smack her with the balloon.
Bonus points if your face looks like Naruto's after punching Haku

Person 1: can you rasengon me?
Person 2: sure, but it will cost you!!

Rasengon by Kakashi_Hatake7 December 21, 2020

Rasengan 

WARNING. MAY CONTAIN SPOILERS. Depending on how far you are in the anime.

The Rasengan is a techinque used by Naruto Uzumaki, Jarayia the toad sage (Also known as Pervy sage), and Minato Namikaze, the fourth Hokage of the Hidden Leaf Village.

The techinque was first created by the fourth hokage, but he wasn't able to fully devolop it before his death. When Jarayia taught Naruto the move, he was able to fully devolop it, and make many more techinque varitions from it, such as the Giant Rasengan, and the Wind-Rasenshuriken.

The Rasengan is a ball of pure swirling chakra, condensed down to the perferred size, and held in ones hand. Jarayia could form it with one hand, however in Naruto's case, he still has to make a shadow clone to form the Rasengan.

Unlike the Chidori, (Lightening blade, or one thousand chirping birds) which uses massive amounts of chakra, and requires some level of Lightening style attack training, the Rasengan can be used several times in a battle, and would only require an above-average, if not basic level of chakra-control.

With devastating power, the Rasengan is also believed to be more powerful than the Chidori, it also doesn't require any hand signs, so it can be used at a moments notice. All this makes the Rasengan the ultimate weapon.

Example:

Random mofo: Its over now, kid!
Naruto: *Makes a shadow clone, and busts out the Rasengan*

Random mofo: Oh, crap! Its that kid from the leaf village! Run for your lives!

Naruto: Yeah! That'll teach you to mess with me!

And thats how I'd picture how some of his battles go.

Rasengan by Skittykitty February 28, 2013

Rasengan 

A sex technique far more powerful than the chidori. As you are finishing take your hand and grab your cum, after that put it in the woman while yelling "SASUKE!" Looks minimal on the outside, but on the inside it destroys their internal organs.

Girl: "Oh yeah babe just like that."
Chad: "Unh SASUKE!" *does rasengan*
Girl: "WHAT THE FUCK"

Rasengan by Caprese Boy November 23, 2020