what does keep it lemon mean

“Keep it lemon” is a British slang phrase that essentially means “keep it cool,” “keep it fresh,” or “stay relaxed.” The expression became popular through TikTok and online memes, and it’s often associated with British youth slang, the Charva/Chav subculture, and football video-game culture (FIFA Pro Clubs). The lemon emoji is commonly paired with the phrase in posts and videos. In brief, it’s a lighthearted way to encourage calm, ease, and a laid- back attitude.