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2.
A hard piece of feces that elongates out of your rectum untill it is as thin as a tootsie roll about 14-18 in. Usually occurs after digestion of starchy foods.
"John, after I had your triple cheese potatoes with the bread and butter for lunch, I hit the pasta buffet up and I really got the feeling that an arkanoid was on its way." I went to the Portable John and a 17 inch arkanoid was floating in the toilet."
by Tom Gronski March 24, 2008
 
1.
Don't let the other definition fool you. Arkanoid is a great Breakout style arcade game made by Taito in 1986 and has since been ported to pretty much every format known to man. It's a Breakout game, so you know that you have to hit the ball with a paddle (actually a spaceship named Vaus in Arkanoid) and break the blocks above, collecting powerups along the way. There's also a boss named DOH, which is a moai. It's probably the best Breakout game of all time.
I want to play some Arkanoid. It's awesome.
by LoganR93 September 10, 2011