KFC has vowed to retrain its workers after the “F-bomb” was dropped on a customer’s gravy pot.
Alan Sinclair, from Jersey, says he was stunned when he picked up his chicken and chips at his local branch last week.
He picked up his meal at the fast food giant’s branch in St Helier when he spotted a rude word on the label of his sauce.
The pot’s label, which included “preparation” and “sell-by” information, said the gravy had been “f****d” at 18.03.
A stunned Alan took to a 15,000-strong Facebook group “Good or Bad Jersey Businesses” to reveal his bizarre experience.
Posting a of the offending lid, he wrote: “So in KFC today the lid of my gravy made some interesting reading.”
Another joked: "Maybe that's what the f really stands for in KFC".
A third said: "Now we know what the Colonel's secret recipe is. Heads will roll!"
KFC has since expressed regret for the mishap and has vowed to compensate Alan over the apparent blunder.
A spokesman said: "The Colonel isn't a fan of fowl language, and we'd never suggest our team members get in his naughty books.
"We're re-training our team members on the label machine and would love the guest to get in touch so we can make it up to them."