"Berlusconi must be laughing his wig off." (The Guardian readers' forum.)
What's happening (actually, in a physical sense) to the wig when it is being laughed off? Does it move
on somebody's head when laughed off?
Anonymous What's happening (actually, in a physical sense) to the wig when it is being laughed off? Nothing; the phrase is metaphorical. It just means that he must be laughing a lot.
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AnonymousWhat's happening (actually, in a physical sense) to the wig when it is being laughed off?
Nothing; the phrase is metaphorical. It just means that he must be laughing a lot. 'Wig' is used because Berlusconi (I presume) wears a toupee. More usually, the saying is 'laugh one's head off'.