IT'S official, South ampton residents have got big mouths!

The results of a nationwide survey have revealed that people living in the city have got the third largest mouths in the country.

Teams armed with tape measures were sent across the UK to find the average adult mouth size of the nation.

They discovered that people in Southampton have got an average mouth circumference of 20.1cm, 0.2cm bigger than the norm nationally.

The national mouth survey revealed that Brummies have the UK's biggest mouths with an average size of 20.9cm, a jaw dropping 2cm larger than Manchester, who have the smallest.

Coming second were the gobby Glaswegians who measured 20.2cm on average.

The survey was conducted over the last two months by soft drink company Oasis, as part of their Chug It' campaign.

They believe that the wider the mouth on a bottle, the easier it makes it to chug' to satisfy thirst and refresh as quickly as possible.

The results have been passed to the product development department of The Coca-Cola Company who are using the information in their ongoing development of the best bottle shape and size for drinking.

The Oasis team also found the UK's biggest mouth with one man in Glasgow measuring an impressive 27.5cm in circumference 5.1cm bigger than a cricket ball.

n Oasis is still searching for the nation's most impressive mouths at www.oasischug challenge.com.

The overall winner will win the chance to star in their own poster advert in their local town.