'Pink sauce' refers to the viral 2022 condiment sold by Miami-based TikTok creator Chef Pii — a pepto-pink hot sauce marketed online that became infamous when shipped products varied in colour, separated in transit, and raised food-safety concerns. It became a cautionary tale about TikTok-driven product launches. If your teen mentions it, they are referencing the meme. Harmless to discuss; the product itself was eventually reformulated and sold in retail.