你是我媳妇你是我老公
[nĭ shì wŏ xí fù nĭ shì wŏ lăo gōng]
In China, this phrase is humorously used between close people, even friends of same gender to emphasize closeness in a non-romantic sense. It translates to "You are my wife / You are my husband" depending on gender perspective being taken for fun rather than literal relationship.