Going steady is a romantic relationship in which both partners commit to date only each other. Growing in prevalence in the United States after World War II, going steady became the mainstream dating pattern in high schools and colleges in the 1950s.
What does steady mean slang?
—used to tell someone to be calmer, to stop thinking or saying foolish or unreasonable things, etc. "Everything's going wrong!" "Steady on, now.
When should you go steady in a relationship?
According to a relationship expert, it's socially acceptable to broach the subject after two months. But some people will get to the stage earlier — it all depends how much time you're spending together, and how much of a good fit you are. If you're not sure, try introducing them to your friends and see how they react.