The Speaker has given the tick of approval for MPs to tell others to 'zip it, sweetie' despite a furore after Social Development minister Paula Bennett used it while trying to silence interjections by Labour's Jacinda Ardern.
Ms Bennett used the term during a raucous exchange in Parliament about National's Limited Services Volunteer bootcamps.
Ms Ardern had asked Ms Bennett about the drop-out rate - and then interjected by repeatedly shouting "50 per cent" during Ms Bennett's reply.
Ms Bennett suggested Ms Ardern "listen to the answer" before drawing her finger across her mouth and saying: "Zip it, sweetie. I'm getting there."
It prompted roars of laughter from National MPs, but Labour's Trevor Mallard was quick to object, telling Speaker Lockwood Smith it was "exceptionally offensive."