Pretty much the entire stand-up special has profanity in every single line. Infrequent usage of very strong language ("Cunt"), frequent usage of strong language ("Fuck", "Cock") and mild language ("Shit", "Dick"). Pretty much every standard profane word is said by Boyle here. There are also many, many usage of slurs of all sorts and types (homosexual, racist, sexist, sectarian). The way he uses any of these words is certainly not for anybody who finds Boyle's style of humour offensive.