Foul-mouthed gran's hilarious reaction to Man City goal prank

This is very funny. And very NSFW.

This elderly Manchester City fan was watching the denouement to this year's Premier League title race on Sunday when her family pranked her horribly.

City had just kicked off against West Ham when the true blue gran stepped out of the room to answer the phone..

As the sitting room erupts in cheers, gran (resplendent in City hat and scarf) rushes back in, thinking that City have one in the net.

Of course, they were only messing.

Her reaction is priceless, but very NSFW (she swears A LOT)

WATCH:

In the end, City comfortably won 2-0 to wrap up the 2014 Premier League title.