Two six heave

Two six heave is a command given in a game called tug-of-war. In tug-of-war, two teams stand on opposite sides of a rope and try to pull the rope towards their side.

When the person in charge of the game says "two six heave," they are telling both teams to start pulling really hard at the same time. The number "two six" is just a way to say "ready, set, go" in tug-of-war language.

So, when you hear "two six heave," get ready to pull as hard as you can with your team!