Raichuing is when you clip your testies to a car battery and cum in a girl. While you cum it will electrocute her vag for the ultimate orgasm. The last step is to scream "RAICHU!!!" While you are doing it.
Ash: yo, Brock, I did some serious raichuing to some jigglypuffs, wanna come and do it too?
Brock: nah I'm good fam
by Boi_person May 22, 2016
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A #26 Pokémon that is currently the only Pokémon who has to live in shadow of Pikachu, his younger brother, because he’s a mascot of the series! How unfair... ;-(

6th Feb is confirmed to be a Raichu Day.
-Wow, Raichu is cute! He’s my favourite Pokémon!
-How dare you?! He’s ugly!
-No U
by Heza Rogalik January 26, 2022
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Pokémon #26. The evolved form of Pikachu.
My Thunder Stone evolved Pikachu into Raichu?
by Donkey Kong Song February 5, 2003
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Evolution of Pikachu in the Pokemon world.

Raichu is deprived of the word "ray" wich is "lightning" in japanese
"Raichu can kick some Squirtle butt!"
by Killy the fox April 18, 2004
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This is a sex position simlar to the "Pikachu" with the major focus being on maximum pleasure during anal.
This position involves the individual on the receiving end getting pleasured analy, when both individuals climax the one on the giving end will pull out and place a tazer in the others rectum and proceed to activate it.

The position can be adjusted for maximum pleasure by having the individual on the receiving end lay in the upward dog and then changing to the downward dog closer to climax and screaming "RAICHUU!!" "RAICHUU!!"
James: Hey Kevin how did your night with Elisabeth go?

Kevin: Was a fucking blast till she stopped responding to me after I gave her the raichu last night.

James: daaam...
by Psychosocial_MaidClub April 30, 2021
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Anyone who exhibits characteristics similar to a the pokemon Raichu, most typically fat goth chicks with heavy eye makeup, frizzy or dry hair, unhealthy orangish skin, and/or excessive blush.
Oh shit look out! Raichus are coming.
by Aybraus March 17, 2008
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clip your testies to a car battery and procceding to zap your testicles and cum in a hoe
that bitch was so bad that i had to raichu her
by penis sucker 492 August 3, 2023
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