Fag

A word that meant cigarettes back in the day but later on used as a slur to people inside the lgbtq+ community (especially homosexual people)
It’s origins come from the Spanish Inquisition, where witches were being burned at the stake, gay men were also tortured. They were forced to collect enough sticks (that were known as faggots) and if the amount wasn’t enough they were used as a way to light up the fire. As a result, the word started to be used as a degrading slur.

Person A: Look at Cyrus, he is such a fag
Person B: You probably shouldn’t say that word if you’re not gay yourself because it’s kinda disrespectful
Person A: Oh ok I’m so sorry, I didn’t know the tragedy behind it