French slang word of the day: "Yaourt":
['Yaourt' ("Yoghurt")] is the word used to describe the practice of singing along to tracks in English, usually with an unconvincing American accent, when you have absolutely no idea of the words. Yoghurt doesn't have to be English, it only has to sound English. Singing along to ‘I Want To Break Free’ in Yoghurt would sound something like this: ‘I wo' do' bek fee.’ Sit on the Métro and you'll hear plenty of amateur French R'n'B singers doing ‘Papa gode a ban noo bang’ in perfect Yoghurt. There are even current French expressions derived from Yoghurt. My favourite is ‘C'est la waneugaine’ — a bizarre distortion of the English, once again — meaning it's crazy or outlandish.
(from Lucy Wadham,
The Secret Life of France, p84)