a man who provides companionship and/or sexual relations for a wealthy, older man in exchange for expensive gifts and/or money; a "gold digger"; syn. sugar baby
Look at that pharmacist and his sugar boy.
It is the opposite for a sugar daddy in that a man or woman dates or provides sexual favors for a younger man in return for expensive gifts, money being in the "in-crowd", etc.
Jay: That's what I need. A sugar boy to provide me money and entertainment. I'm done with sugar daddies.
Joey: You said it! I'm done with the creepers. Let's be baseball husbands.