A threadjacker is someone who hijacks a conversation or topic, typically online, and redirects it to their own agenda or interests. Synonyms for threadjacker include disruptor, divert-er, hijacker, diverter, and sidetracker. These individuals can be frustrating and annoying when they intentionally steer a discussion off course, but sometimes it can happen accidentally when people share personal anecdotes or experiences. It is important to remain respectful and stay on topic to avoid becoming a threadjacker and keep the conversation focused. If someone is intentionally threadjacking, it may be necessary to address it tactfully to redirect the conversation and keep it productive.