The Sofa King, which advertises its location in Northampton, England as "next to the cafe with the car on the roof", said it has been using the line on its shop, vehicles and advertising since it launched nine years ago.
It is not the first time the company has been in hot water over its risqu� advertising. The Sofa King admitted that the Northamptonshire police had received complaints in 2004 but that they had not been pursued by the Crown Prosecution Service.
The Advertising Standards Authority received three complaints from readers who saw an ad in the Northampton Herald & Post and found it offensive and unsuitable for general public display.
In its defense The Sofa King said the slogan referred to pricing and that the words had "not been changed or run together or punctuation used in a way intended to cause offence".
However, the ASA said that the phrase could be interpreted as a derivative of the swear word "fuck", which research had found to be a word "so likely to offend that it should not be used in ads at all, even when it was relevant to the name of a product".
The ASA said because of that the slogan was likely to cause serious or widespread offence and it banned the business from continuing to use the phrase "Sofa King Low" in its advertising.