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The official battlecry of the pokemon pikachu.

Ash: Go get 'em, Pikachu!
Pikachu: Pika-pika! ..piiiiikaaaaaaachuuuuuuuuuuuuuuuuuu!!
Team rocket: Team Rocket's blasting off agaaaaaaiiiiin! *sparkle*

by vampirebug94 August 17, 2007
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Aug 11 Word of the Day
A phrase to describe someone who is cognitively degenerating. Synonym of "going off the deep end". Can have varying degrees of severity.

Reference to the song "Hey You" by Pink Floyd. The line "and the worms ate into his brain" makes no sense in an otherwise linear and literal narration throughout the lyrics.
"My boyfriend has a total case of brain worms. He told me the cat was bugged so the Feds could listen in on us having sex..."

or

"You totally stumbled over that entire sentence. Can't speak English all of a sudden? What, do you have brain worms?"
by _Jez_ October 03, 2009
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2
1. cold-climate lagomorphs, relative to rabbits and hares, that have short ears, almost no tail, nostrils that can close at will, short limbs, and long, dense fur (even the feet are furred)

2. what pikachu says
1. rocky mountain pika, cony
2. PIKAAA!
by Aliz February 01, 2005
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3
It's a Brazilian word that means "fucking awesome" or simply "awesome" it also means Penis in Portuguese and it's easily founded in Brazilian music lyrics
"This guy is Pika"
"Look at my Pika"
"Suck my pika and shut up "
"It's soooo pika"
by Crazyrandom person April 10, 2016
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4
I slipped my hand down her pants to feel her moist pika
by the413 August 20, 2009
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5
PIKA is a chat group on the Neopets Avatar Chat devoted to Pokémon; Pokémon Is Kick (Butt)!

Members chose a Pokémon to "be" upon joining

PIKA was created on Halloween of 2009.
PIKA has balls... POKEBALLS!!!
by PIKAer January 10, 2010
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6
a rare eating dissorder where the afflicted are compeled to eat non food objects such as clay, dirt, crayons, plastics, and other such usually malluable items.
this is different from small children eating dirt.. it usually affects teenagers to adults.
that girl who was diagnosed with pika really tore up her intestinal track.
by shinigami dani July 17, 2003
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