Explore the meaning of a sugar daddy , the myths, motivations, perks, and risks, and understand the realities behind this unique relationship dynamic. The meaning of SUGAR DADDY is a well-to-do usually older man who supports or spends lavishly on a mistress, girlfriend, or boyfriend. How to use sugar daddy in a sentence. Slang a rich usually middle-aged or old man who bestows expensive gifts on a young person in.... Click for English pronunciations, examples sentences, video. Sugar daddy definition : a wealthy man who spends freely on a younger person, generally a woman or a gay man, in return for companionship or sexual intimacy.. See examples of SUGAR DADDY used in a sentence.