The rule in costume was the frilly tutu the short stiffly-projecting skirt worn by every ballerina .

服装一律是有褶边的短裙，即每一个女演员所穿的用硬壳撑起来的短裙。

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First the left-hand veil of the ballerina's skirt rises to indicate the hour, followed by the right-hand veil rising to show the minutes.

WSJ: The Feminine Mystique of Watches

But that was soon under three feet of water as he waded ashore, a weary soldier still smelling his own vomit from a night in a close boat on a choppy sea, and whose kilt in the freezing water was floating prettily round him like a ballerina's skirt.

ECONOMIST: Bill Millin