An alien parasite, the villians of the Animorph series, written by K.A. Applegate. They closely resemble large earth slugs and are grayish-green in color. They enter the brain through the ear canal and take over the host body completely. Beings taken over in this manner are known as Controllers. The Andalites have been their sworn enemies for more than 39 earth years.
by Malani October 7, 2006
Get the Yeerk mug.Yeershating (verb). The act of falling on the ground in uncontrollable laughter.
Based on the laughter of Yeershati.
Based on the laughter of Yeershati.
"Man, I was hanging with my buds last night, and after Joe told this joke, we were yeershating all night."
by Eric and Mango May 13, 2006
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