Green’s Dictionary of Slang

(UK black/teen) to stop it, i.e. a conversation, an argument; usu. in phr. allow it.

1997		C. Newland Scholar 92: Sam, ’llow me dem old wives’s tales an’ face the truth.
2007		D. Rascal ‘Wanna Be’ 🎵 'low it, you're not heartless / Nothing but a lot of hot air, you're harmless.
2011		F. Guene Bar Balto 69: [trans.] ’Low it, man, I don’t have to tell you, it's nothing to do with this business.
2011		J. Cornish Attack the Block [film script] 90: PEST Moses versus the monsters! You’re Will Smith man! MOSES (dismissive) Yeah, yeah, yeah... allow it.
2013		pappzd.com 3 Sept. 🌐 Allow it, you’re not ready for the hood yet! Kevin Hart attempts British slang [...] Speaking to host Hussain on the Hussain’s House YouTube show, Kevin was taught the meaning of ‘allow it’, ‘peng’ and ‘gassed’ before giving a taste of his own take on a London accent.
2017		theculturetrip.com ‘Guide to London Slang 10 Jan. 🌐 Allow it – stop it.
2020		G. Krauze What They Was 64: I’m thinking allow these ratchet chicks tryna hustle man.
2022		Billy Billions ‘Natural Badness’ 🎵 Mum said ‘Lowe all the fuckery’, but the fuckery's what made man me.