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
by windwaker123 November 28, 2010
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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.
by Skittykitty February 28, 2013
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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"
by Caprese Boy November 23, 2020
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A powerful jitsu performed by Jiraya, the 4th Hokage, and Naruto. It cosists of a mass of swirling chakra which is created by controlling the spherical ball of chakra in a person's hand. Rasengan is a devastatingly powerful attack that can send a person spinning high into the sky. Naruto is awesome! WHOOOOOOOOOOOT!
Naruto: "RASENGAN"
Sakura: "Naruto you are so strong!"
Sasuke: "Hmph."
Kakashi: "' As I thought, Naruto is developing in a fast rate. I'll be expecting great things from that kid.'"
by Gangsta1011 November 09, 2006
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A tactical weapon used for catching fades, when you wanna pull up on someone you got beef with, you spiral up that Rasengan and you'll send that man flying to his homeboys. Bonus points if you scream yelling ''SASUKE''.
''Yo bro I just caught that boy Niti lacking and hit him with the Rasengan'' ''Oh word? He ain't have the Chidori on him?'' ''Nah man, caught him with his girl Sakura and had to show him wassup.''
by Ramen Addict Jellal July 24, 2020
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When a woman climaxes after sex and utilizes her Punani Tsunami Styled Jutsu to scoop out and swirl her cum into her hand. Yell, "RASENGAN!" and grind this true technique into your partner's face.
He was so distracted preparing his Chidori, I had enough time to scoop out my cum and Rasengan him instead.

Bukkake Sensei failed to combine the Rasengan with his own male-nature, causing him to invent the Chidori.
by [CLIT]Aerros June 03, 2017
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When you pull out and cum on a ball the size of your hand and spin it m the middle of your palm and yell rasengan and hit her in the face bonuse points if u have a angery focused look on ur face
Anime friend:how was it last night

Anime friend2:it went good till I used therasengan on the bitch in the face
by SKATER_X_ September 25, 2016
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