Definition & Meaning of "allow it"in English

What does "allow it" mean in British slang?

It is used in British Multicultural London English (MLE) and UK slang to tell someone to leave something alone, drop it, or stop talking about or dealing with a subject or action. People typically say "Allow it, mate" or "Just allow it, it's not worth it." The term originated in early 2000s London street and grime culture, likely from Jamaican patois influence, and remains common in UK youth slang as a dismissive command.