Could you explain me about the expression "big time"?
Native speaker’s answer
Rebecca
"Big time" is an informal expression used to mean "successful," "important," or "to a high degree." In this video, "big time" means "important". For example, if someone says they messed up something "big time," it means they made a huge mistake. If someone says that someone is a "big time politician," it means that they are a very successful politician. Ex: Rosa from my fifth-grade math class is now a big-time celebrity. Ex: I messed up my interview big time. I don't think they're gonna give me the job.