Belgian tattoo artist specialises in inking palates

Palate tattoos aren't the most popular but they are increasingly trendy, according to Voet. Photo: Monia Mersni/dpa

There are many spots on the body where a tattoo would normally be invisible in everyday life, covered up with clothing. And then there're some spots that go even beyond that.

To see Lucas' tattoo, he has to put his head all the way back and open his mouth wide. Then, on the roof of his mouth, a tattoo of the infamous pile of poo emoji, though without the eyes, becomes visible.