horizontal mambo UK /ˌhɒ.ɹɪˈzɒn.təl ˈmæm.boʊ/US /ˌhɔː.ɹəˈzɑːn.təl ˈmɑm.boʊ/ noun1 •(euphemistic) Sexual intercourse.She says Peters continually harassed her, touching her breasts and buttocks, tried to push her onto a bed when he was naked, tried to kiss her breasts and offered her money for the horizontal mambo. — 2007 formshorizontal mambos