The 'My Momma Said' meme features a childhood photograph of American rapper Cardi B, showing her with a hand on her hip and a defiant, knowing expression. The image first went viral in 2018 after being shared on social media, quickly becoming a symbol for petty childhood grievances and tattle-tale behavior. Users typically pair the image with captions beginning with the phrase 'My momma said,' followed by a humorous or annoying demand a child might make. It perfectly captures that specific energy of a younger sibling or neighbor asserting authority through their parent's words, making it a staple for relatability and nostalgia.