blood is thicker than water

blood and guts

Gore; gruesome images.

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, sweat and tears

A person's determination and hard work.

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.

carry water for

To perform menial tasks for; to serve; to assist; to be forced by politics or pragmatism to endorse or promote a belief, individual, or organization that in reality one does not fully support.

Chinese water torture

Any repeated irritation that builds to deliver cumulative damage.