POSSLQ en · NOUN Pronunciation /ˈpɒsl̩ˌkjuː/ (Received-Pronunciation) (US) audio/ˈpɑsl̩ˌkju/ (General-American) Meanings (abbreviation, alt-of, qualifier:US Census) Abbreviation of person of the opposite sex sharing living quarters. alt of person of the opposite sex sharing living quarters c. 1981, Charles Osgood You live with me, and I with you / And you will be my POSSLQ / I’ll be your friend and so much more / That’s what a POSSLQ is for. Forms SpellingFeaturesLabelsSource POSSLQs Number=Plur lexicographic