She's gone completely round the twist.

她完全疯了。

《牛津词典》

He managed to twist himself round in the restricted space.

他设法在有限的空间内转过身来。

《牛津词典》

An owl's head, for example, can twist so far round that it faces backward, but when the bird wants to look forward again, it must turn its head back the way it came.

比如说猫头鹰可以将正脸一直转到后脑勺的位置，但是如果它再想看到正前方的东西，那整个头部只能原路返回了。

youdao

The Federal Reserve even felt it needed to launch another round of its Twist program to stimulate the economy.

FORBES: The Great June Market Comeback

For the world's leading central banks, the action is all in "unconventional measures" to support the economy and the banking system: like the UK's latest round of quantitative easing, or "operation twist" by the US Federal Reserve.

BBC: An unconventional ECB meeting