Top Definition
A 'Heatherism' is when you get mad or upset that people are being distant on texting, etc. and then a week later you find out they had a legitimate reason and then you feel guilty.

Also defined as the act of over overassuming people are distant or do not like you, and jumping to conclusions, only to quickly find out you are wrong.
A person who sends a text message only saying "okay," sending a person into instant over analyzation mode, would be considered a "Heatherism."
by PlainJane27 April 21, 2010

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