The hey bestie greeting became a popular shorthand online for an overly familiar, affectionate hello, often used ironically between close friends. This Sebastian version circulated as a short game sound clip and was shared as a reaction sound for streams, edits, and group chats. Its brevity and soft delivery made it easy to reuse without context, so creators began dropping it whenever a character arrives, a friend logs on, or a scene needs an instant warm tone. It remains used because the phrase feels instantly recognisable and friendly.