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A neurophysiological disorder that occurs in certain people (usually a girl, usually named Kalina) who are irrationally happy all the time. As a result, they are never able to stop their eyes from smiling, even with strenuous effort. It is a very unfortunate condition that causes immense career success and likability. Condition is currently incurable and is spread by direct interaction with others. Please beware.
Jim: β€œKalina! What happened with your face?”
Kalina: β€œ....Perpetual smiling eyes disease”
Jim: β€œ...oh...”
by A chocolate flavored quark August 20, 2019
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