1 definition by Proudofmysoldier

Top Definition
A break up letter sent to a girl's significant other. Generally used in military relationships, while the man is deployed for a long period of time. Usually, Dear John letters are reserved for bitches who can't be proud of their man who is risking his life to protect his country.
She started sleeping around with other guys while her fiance was deployed to Afghanistan, so she wrote him a Dear John letter to break off the engagement.
by Proudofmysoldier May 23, 2011

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