Top Definition
Used to describe heterosexual couples who choose not to marry based upon their own personal beliefs that there is no need to muck up a good friendship with a marital contract, and choose to live as though married (ie: together and monogamous) but are not recognized as common law.
Bob is Laura's anti-spouse. They live together, run a household together, and own pets together.
by Truck1981 July 25, 2011

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