The 'Let's Go' Saweetie meme originated from a high-energy video of rapper Saweetie excitedly shouting the phrase while sitting in her car. The clip quickly became a viral sensation on TikTok and Twitter due to her infectious enthusiasm and stylish aesthetic. It is primarily used as a reaction meme to express extreme excitement, readiness for a night out, or general hype about a situation. Whether it's a new product drop, a weekend plan, or just good news, Saweetie's 'Let's Go' has become the universal internet signal for being completely on board with the vibe.