fish out of water

big fish

An important person.

big fish in a small pond

One who has achieved a high rank or is highly esteemed, but only in a small, relatively unimportant, or little known location or organization.

bigger fish to fry

A much more pressing issue to attend to.

blood in the water

In a competitive situation, the exhibition of apparent weakness or vulnerability by one party, especially when this leads to a feeling of vulnerability or greater pressure to perform on the part of the weak party, or enhanced expectation of victory by the others.

blood is thicker than water

Family relations and loyalties are stronger than relationships with people who are not family members.

blow out of the water

To trounce; to defeat thoroughly, as at a game or in battle.

carbonated water

Water that contains carbon dioxide dissolved in it under pressure and is intended for drinking.

carry someone's water

To do someone's bidding; to serve someone's interests.