The former Baywatch star is currently filming Britain's Got Talent auditions around the country with fellow judges Michael McIntyre and Amanda Holden.
But, according to British newspaper the Daily Star, David has been having trouble with all the different regional accents, including Geordie and Irish.
The 58-year-old said: 'I was speaking to this Scottish woman and I said, 'You have a beautiful accent, but I have no idea what you just said.''
The talent competition returns to British TV in the spring.