1 definition by Meg/Ana

Top Definition
Abbreviation for Genetic Half Siblings. With identical twins, when they grow up and marry, their children will be genetically from the same person-- the cousins will be half-siblings, genetically. Variations are Genetic Half Sister and Genetic Half Brother
Eric and Derek are identical twins. Eric married Lucy and had Ike; Derek married Susan and had Lisa. Ike and Lisa are GHS's.
by Meg/Ana April 22, 2006

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