One man was criticised online as "cheap" and "rude" after boasting about an experimental tipping method he tried while out to dinner with his wife.

The US man uploaded a picture of five $1 bills to Facebook, explaining it was all you needed to get the "best service of your life".

"You put 5 singles out on the table at the beginning of the dinner for the waiter/waitress to see," he explained.

"(Don't say anything to them) if they mess up, you take a dollar away, and so on. At the end of dinner how ever much is left is their tip."

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He said the waitress was confused by what was going on but eventually earned the whole $5.

Though he added that he did take a dollar away at one point when she forgot to give them bread but made up for it by giving them extra.

"All in all a great evening with my love and a good dinner experiment we both wanted to see play out," he wrote.

"Try it, you will be surprised!"

News reporter Mark Arum shared a screenshot of the post to Twitter with the caption: "As a former waiter, please don't ever do this. Ever."

His followers were quick to call out the man for his cheap tactic.

"That's pretty disgusting behaviour to be honest. If you want to leave a tip then do so, or don't … but to flaunt your cash in this way is just awful," one person said.

"Extremely rude and disrespectful. Servers work very hard and do an outstanding job in service of their patrons. I truly hope no one ever tries to incorporate this insulting tactic," another said.

Another said: "Not only rude but also a cheap."