Top definition
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
Get a pika mug for your Uncle Callisto.
May 3 Word of the Day
Internet persona(s) who happens to follow you and you happen to follow them back and maintain communication with and have a mutual liking for eachother whether it be friendship wise, etc. (Mutuals if more than one mutual)
Monica: Oh yay! I made a new mutual today because we started following & talking to eachother on twitter and we like eachother (so it seems).
by qtheresurrection March 25, 2015
Get a Mutual mug for your girlfriend Nathalie.
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
Get a pika mug for your friend Paul.
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
Get a Pika mug for your brother Georges.
4
I slipped my hand down her pants to feel her moist pika
by the413 August 20, 2009
Get the Pika neck gaiter and mug.
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
Get a PIKA mug for your Facebook friend Rihanna.
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
Get a pika mug for your sister-in-law Rihanna.