George Carlin had a routine called “the 7 words you can't say on television” which was extended to 15, then 20 something. It's now at around sixty-eight. read more
The 13 bad words are most likely the curse words we use. Here is a list of some of those curse words: Fuck; Shit; Bitch; Ass; Damn; Motherfucker; Cock or Dick; Pussy; Whore; Cunt; Son of a Bitch; Arse; Ballsucker; There are more curse words but those are the first 13 I can come up with off the top of my head. read more
It's because, unlike most swear words, that one is connected to a specific group of people, the same as faggot and chink. Also, unlike most countries, we fought a war for the rights of black people to be recognized as human beings, and tensions still run high about that in certain parts of the country. read more