The nudge was a real feature in MSN Messenger, later Windows Live Messenger, Microsoft's hugely popular chat app in the mid-2000s. Users could send a nudge to shake their friend's entire chat window while playing a loud buzzing sound, usually to get attention when messages were ignored. It quickly became infamous for nudge wars between friends. Years after the app shut down, the sound lived on through nostalgia edits, meme soundboards and TikTok skits about early internet culture, where its abrasive alert still signals playful annoyance.