Who Says What's Occurring?

Ruth Jones, who created Gavin & Stacey with Corden, brought this phrase to millions in her role as Stacey's best friend, Nessa. Some fans have repeated the phrase to her in odd places.

Is what's occurring a Welsh saying?

1) What's occurrin'? Despite being popularised by Ruth Jones' Nessa in BBC sitcom Gavin and Stacey, this is no mere catchphrase – it's a general greeting / line of questioning used widely across Wales.

What does Nessa from Gavin and Stacey say?

You can buy me all the chocolates, all the chow mein you like but it won't wash and you knows why. Now, back off, or I'll tell everyone about my trip to the doctor's. Is that what you really want?”