What is hasta luego?

"Hasta luego" is a common Spanish phrase that means "see you later" or "until later" in English. It is used as a casual way of saying goodbye to someone, with the implication that you expect to see the person again at some point in the future. The phrase can be used in a variety of social situations, ranging from informal to semi-formal contexts. It's part of everyday conversational Spanish and is similar to other expressions like "hasta pronto" (see you soon) or "adiós" (goodbye), though "adiós" can carry a more final tone depending on context.