Meliodas's tattoo is located on the left side of his chest, just below his heart. The tattoo is a black and white lion with its mouth open in a roar. The lion represents Meliodas's strength and power, as well as his determination to protect those he loves. The location of the tattoo also holds significance, as it is close to Meliodas's heart. This shows that Meliodas is not only physically strong, but also has a lot of heart and compassion.