A response used by foolish kids who think they’re hard and smart. Also a comeback that probably originated from about 2013. It’s right up there with neek at the dead response level.
Daniel: Oi bruv, what’s the time?
Jake: Your Nan.
Daniel:Suck your mum you fucking slag.
An insult used to respond to something ridiculous or that you have complete contempt for. A derivative of the phrase Your Mother said with a Boston or New York accent. First brought into popular culture by lifestyle brand BLWo.me.
Why are you late for work today Jimmy ? Your Mothah that's why.