I told the kids a story, making it up as I went along.

我给孩子们讲了个故事，是现编的。

《牛津词典》

I am making it up now.

我现在正在构思。

youdao

If they're making it up, that's much more difficult.

如果他们撒谎了，这是很难的。

youdao

Too many in the region wake up with few expectations other than making it through the day, and perhaps the hope that their luck will change."

VOA: special.2011.05.21

I mean, I'm not making it up. It just does. They all are.

这可不是我瞎说的,事实就这样

耶鲁公开课 - 博弈论课程节选

Whereas most utterances purport to be saying something true about the actual state of things in the world, literary utterance is under no such obligation, the argument goes, and ought properly to be understood as fiction making it up as opposed to referring.

大多数言辞都是对事物的真实状况的,真实反映，而这种观点认为，文学没有这个义务，应该把文学理解为小说,它是虚构而不是实指。

耶鲁公开课 - 文学理论导论课程节选

Do you think I am making it up and that my theory is unfounded?

FORBES: Move up http://i.forbesimg.com t Move down

The Scottish Conservative leader, Ruth Davidson, accused the first minister of "making it up as he goes along".

BBC: Scotland politics

NPR's Tony Cox talked to Jarrett and asked him to share the secret to making it up as you go along.

NPR: Keith Jarrett's Audience Connection