UK Furniture retailer banned from using catchphrase "Sofa King Low".

(click, via)
This is Sofa King Lame.
After using the line for nine (9) fucking years, Northampton's Sofa King has been reprimanded by the ASA, because, "[the ad] could be interpreted as a derivative of the swear word 'fuck', which consumer 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..."
They probably got a complaint from somebody "important"—like that dicksplash David Cameron.
Here's six more amusing ASA ad bans.