taboo

taboo
a cultural or religious custom that does not allow people to do, use or talk about a particular thing as people find it offensive or embarrassing
（文化或宗教習俗方面的）禁忌，忌諱，戒律

很容易和 tattoo混洧

tattoo
1.a picture or design that is marked permanently on a person's skin by making small holes in the skin with a needle and filling them with coloured ink 文身；（在皮膚上刺的）花紋
His arms were covered in tattoos. 他的胳膊上刺滿了花紋。
2.an outdoor show by members of the armed forces that includes marching, music and military exercises 野外軍事表演（包括齊步前進、軍樂和軍事演習） especially British English
(還記得每年七八月，愛丁堡國際藝術節其中一項最具看頭的表演)