Words such as 'Cheers', 'ta' or 'that's great' have replaced a thank you because many Britons think it's too formal.
Researchers found that four in 10 Britons prefer not to use it while 13 per cent think it is old-fashioned, the 'Daily Express' reported.
Instead, words such as 'cool', 'brilliant', 'lovely', 'fab', 'super', 'you star', 'wicked', 'okay', 'nice one', 'much appreciated', 'awesome' and even 'boom' are more popular than a thank you.
"So words such as boom, cool and wicked might be deemed appropriate with your mates, but not quite so suitable for a work setting, or when talking to an elder," Shore said.
Of the 2,000 Brits who took part in the study, six in 10 people believe that, as a nation, Britain is quite rude.
