A misunderstood yellow rat-like creature that often shows up on the show pokemon. We can all agree that if he wasn't portrayed in a manner that looked like a 4-year old's imagination and if people could actually understand what he was saying, his cool points would total around that of Nickelback. His abilities include emitting powerful electric shocks. Recenlty he has attempeted to get his name changed to Brandon.
"Pika Pika!"

"Pikachu says that he hates the director of pokemon and would like to take a shotgun to his head."
by Kazyan July 13, 2006
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The lead Pokemon character in the Anime of Pokemon. An electric mouse Pokemon.
It is described in different ways in different Pokemon games and are as follows:

Red/Blue: When several of these POKéMON gather, their electricity could build and cause lightning storms.
Yellow: It keeps its tail raised to monitor its surroundings. If you yank its tail, it will try to bite you.
Gold: This intelligent POKéMON roasts hard BERRIES with electricity to make them tender enough to eat.
Silver: It raises its tail to check its surroundings. The tail is sometimes struck by lightning in this pose.
Crystal: When it is angered, it immediately discharges the energy stored in the pouches in its cheeks.
Ruby: Whenever PIKACHU comes across something new, it blasts it with a jolt of electricity. If you come across a blackened berry, it's evidence that this POKéMON mistook the intensity of its charge.
Sapphire: This POKéMON has electricity-storing pouches on its cheeks. These appear to become electrically charged during the night while PIKACHU sleeps. It occasionally discharges electricity when it is dozy after waking up.
Emerald : It stores electricity in the electric sacs on its cheeks. When it releases pent-up energy in a burst, the electric power is equal to a lightning bolt.
Ash: Go! Pikachu!!

That Pokemon named Pikachu is soooo cute. =3
by I am some guy October 8, 2009
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1. An electric mouse pokémon. Many of them gather in electrical storms. It has small pouches on its cheeks that discharge electricity. (from the pokédex)

2. A cute, small pokémon that was crossed between a lightning bolt and a mouse. If you grab one's tail, it'll shock the pants off ya.

3. See pokemon, pokémon, pocket monsters, or electrical mouse.
Brock: *Lost in fog* Hey! Where are you guys!?
Ash: Over here!
Brock: *Sees something* Oh! There you are! *grabs Pikachu's tail by mistake*
Pikachu: KACHUUU!! ->.<-
Brock: Eeeyaaaaaaah!!*dead* X(
by Ganruichi October 21, 2005
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Just like other japanese pokemon names, the word Pikachu has a childish meaning from onomatopeic expressions such as girigiri and pikapika. Pika is taken from the sound of sparks or the effect of something being shiny. Chu is the sound a mouse makes as well as a kiss. Easy for children to remember and understand. Pikachu is an electric mouse pokemon, although he looks like a rabbit squirrel tiger with cockatiel cheeks. He popularized pokemon and is the main mascot of the show in the united states. Much more popular now that in japan as now japan has been taken over by battle beatles. Some people want him to die and some want to make love to him. I thought he was cute when I was 12.
Pikachu fainted. Let's eat him.
by m0u5y January 3, 2006
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While it is an adorable yellow creature, when referred to by Chelsea Handler, it refers to a woman's pussy.
Brittany Spears's pikachu is all over the internet because she doesn't wear any panties.
by d-shizzle-fo-rizzle September 11, 2007
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Pikachuing is when you begin jizzing on your partners face and whipping them with live electric cables, screaming "you do not have enough badges to train me!"
My Ex? Well he started Pikachuing me and I lost control of my bowels... so he dumped me.

No, me and my partner prefer Pikachuing to Donkypunching - I like the tingle :)

Everyone at the orgy tripled when we tried Pikachuing, Blastoising and Charzarding at the same time. Now the whole room is covered in shit and smells of burnt pubic hair loool.
by DirtyDozz March 8, 2014
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