It's "to fall prey"
Meaning: to be a victim or to be harmed by someone or something
usage: We should not fall prey to today's advertising world.
fall a prey
If your plans fall through, it means they did not work out.
It means to fall asleep while sitting (or standing).
This is the equivalent of our American idiom: If you fail, try try again.
yes, it is.
It's not an idiom - it's a description of what happens when you get nervous and excited. Your legs feel wobbly and you might even fall over because your knees get weak and collapse underneath you.
It is an idiom meaning that someone who had stopped drinking alcohol has slipped up and started drinking again.
an idiom is a saying that doesnt mean what it says. and example is someone saying the apple doesnt fall far from the tree, the are not actually talking about apples and trees they are usually talking about a parent and child relationship.
Beware that you do not fall a prey to the highwaymen who stalk these roads.
The idiom "crocodile tears" refers to insincere or fake displays of sadness or emotion. It comes from the myth that crocodiles shed tears while eating their prey, appearing to show remorse when in reality they are not genuine.
Obviously, to fall flat is exactly that. However, as an idiom it refers to either a joke or some piece of advice or 'wise words' that nobody properly understands. So you say these words and everybody looks at one another and says "So what?" It will have fallen flat.
It is not an idiom, it means your nose is itching.