What's this?
A dam
What's this?
A bottle of water
What's this?
An hydrant
"To be in deep water"
To be in a difficult situation which is hard to deal with
"To be in hot water"
To be in a difficult situation in which you're going to be punished for your actions
What's this?
The sink
What's this?
A tap
What's this?
A bathtub
"To be like a fish out of water"
To feel awkward or uncomfortable because you are in an situation which you have not experienced before
"To pour cold water on something"
To be critical of a plan that others thought was exciting or great
