Top Definition
The natural tendency of relationships to disintegrate. Based on the concept of entropy in nature, this phenomenon can be measured by considering factors related to the compatibility and mental integrity of friends.
Rita has a extremely high rate of frientropy because she is a jealous, back-stabbing bitch, whereas Nancy's frientropy rate is rather low because she has a magnetic personality and is nice to everyone.
by Michael Sinnott October 15, 2007

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