Definition & Meaning of "[have] something going (on|) for {sb}"

What is the origin of the idiom "have something going for someone" and when to use it?

The origin of the idiom "have something going for someone" is believed to have emerged in the mid-20th century in American English. The phrase is likely an extension of the use of the verb "to go" to mean "to succeed" or "to progress." It implies the idea that certain qualities or circumstances can work in someone's favor and help them succeed, even if they may not have all the qualifications or advantages that others possess.