mustache ride noun2 •(slang, vulgar) Oral sex in which the receiver straddles the face of their male partner.CHRIS: Wow – you like me because I’m sweet & caring? CANDY: Okay, it doesn’t hurt that you dressed up as a mustache ride for halloween. — 2007 •An alcoholic beverage consisting of equal parts spiced rum and orange juice served over ice.Boy, do I feel horrible after drinking too many mustache rides last night. formsmustache rides