"Bump into someone" is an informal phrase that means to unexpectedly meet or encounter a person. This can happen in various settings, such as on the street, in a store, or at an event. The meeting is usually unplanned and can lead to a brief conversation or interaction. This phrase can also refer to a chance encounter with someone you know, like a friend or acquaintance. It often implies a casual or friendly nature, as opposed to a formal meeting. Such encounters can create opportunities for socializing or reconnecting with others in your community or social circle.