Kochie says PM Tony Abbott recently called him 'Chris', blaming the mistake on his Christmas party the night before. Courtesy: Sunrise/Channel Seven

WE’VE all been there. Shuffling into work on the day after the company Christmas party, feeling a little dusty and guaranteed to not be at our sharpest.

But, we’re not all the prime minister, and our blunders aren’t broadcast on live TV.

Tony Abbott has blamed a hangover for mistaking the identity of Sunrise host David Koch, who he is interviewed by regularly on the show, calling him ‘Chris’ not once but twice a couple of weeks ago.

The PM was already having a tough week copping a major hit in the polls when he copped a grilling from Kochie.

A struggling Abbott not only stumbled over his words on co-payments and university fees, but managed twice to mix up the host’s name.

This morning on Sunrise Kochie revealed the PM’s confession that the Christmas party was to blame.

“I saw him the other night and he came up and he goes ‘g’day Chris’, and he apologised,” Kochie said on the show this morning.

“He said I was a bit hungover because we had our staff Christmas party the night before.”

Joe Hockey calls Kochie 'Chris' Joe Hockey calls Kochie 'Chris' after PM Tony Abbott got his name mixed up a few nights ago. Courtesy: Sunrise/Channel Seven

Treasurer Joe Hockey also joined in the fun, carrying on the joke in a later segment also calling Kochie by his new nickname.

“Good to see you Kochie ... Chris ... Kochie,” he signed off after a heated segment discussing the GST.

Did you have your staff Christmas party last night as well?” Kochie joked.