informalSY an older man who gives a young person presents and money in return for their company and often for sex 〔以礼物和金钱换取年轻女人陪伴或性好处的〕老色迷,阔干爹,甜爹
Examples from the Corpus
sugar daddy• She always had a sugar daddy.• A bill comes in and along comes sugar daddy with a loan, you can tresist it.• The point is that Sun's kind of sugar daddy is neither uncommon, illegal or even fattening.