It is often left out of periodic tables because it can be viewed as offensive.
Can be used to describe a physical attribute of someone or something.
Connor: did you here about the new element they discovered?
Dilon: No, what is it?
Connor: It's called Fagatopium but the teacher said she wouldn't put it in or periodic table.
Connor: Cause she thought it was offensive
Dilon:Her periodic table is just like fagatopium, gay.