a domestic partnership is a form relation between two people in which one person is usually domesticated like a cow or a dog resulting in said domesticated person being inclined to do everything their master partner tells them to do. frequently made popular by facebook and ignorant people unsure of the true definition.
Chip: Does anyone know where Walter has been recently?
Buck: Nope. Him and his girlfriend are in a domestic partnership on facebook though.
Chip: He probably sucks at life now.