👉 The profane word you're referring to is a "Cockney English" term that means "You suck". It's a joke in the UK slang language and can be used as a playful insult. For instance:
"A cockney, who ain't got no fags, no fags, no fags, not no fags! That's why they don't like us!" This sentence is unsettling because it suggests that a group of people are intolerant or dismissive of sexual orientation and promotes a sense of self-importance.