A pitched battle - Pitch is a property related to sound. When the pitch is high then people tend to seem have shouting or shrilling sound. A pitched battle therefore means a quarrel in which people make too much noise.
1. There is a short spark and both of them will have a pitched battle.
2. Last night there was a pitched battle between a husband and a wife in this building.
3. I don't want to have a pitched fight with you, just get rid of me this time.