A Disease that was formed inside the famous Japanese Ronald McDonald. With such disease spreading, he can control the entire universe. YouTube is an example of an already infected website. Ran Ran Ru has entered many bored YouTube users in their quest for happiness. The symptoms for Ran Ran Ru include: red makeup, flailing your arms in the air, speaking Japanese, making absurd gestures into a mirror.

This disease has no vaccine, nor any treatment. This disease is HIGHLY contagious, and spreads like butter. The only way to avoid it is to never use the internet.
If you sample a chicken nugget, you have Ran Ran Ru. If you look at the McDonald's sign, you have slight Ran Ran Ru.
by Andre Lulz June 11, 2009
Top Definition
A magical word used as a brainwashing tool by the Japanese Ronald McDonald.
When Ronald gets happy, I just have to do this. Everyone join in. Here we go! Ran Ran Ru~
by sexybluedoughboy January 30, 2008
An exclamation shouted, usually at the point of orgasm, after having sex with someone dressed and whose face is painted to look like Ronald McDonald, or any other similar clown.
As my spew hit the paint on her clown-like lips, I yelled "Ran Ran Ru!"
by wrapped in shade March 28, 2010

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