You may tell a friend that the new play you saw last night is not so hot.

VOA: special.2009.12.06

There may be a little uncertainty about whether the pizza place is still going to be open late at night when you get hungry.

就是当你饿的时候,不能确定批萨店是否还营业

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选