U Jelly? (short for 'Are you jealous?') is a classic internet slang term and meme that gained massive traction on imageboards like 4chan and Reddit during the late 2000s. Often paired with the iconic Trollface or a picture of actual grape jelly, it is used to provoke or 'troll' others who might be envious of the poster's achievements or possessions. The phrase became a cornerstone of early internet culture, embodying the sarcastic and confrontational spirit of early memes. It evolved into various formats, including image macros and reaction GIFs, remaining a go-to response for anyone looking to stir the pot with a touch of smugness.