revenge is a dish best served cold

The phrase "revenge is a dish best served cold" means that it is more satisfying and effective to seek revenge or retaliate against someone in a calm, calculated, and strategic manner, rather than acting impulsively or immediately. It implies that patience and planning can lead to a more impactful and successful revenge. The metaphorical use of "dish" suggests that revenge is a course of action that should be planned and executed at the right time and under the right circumstances for maximum impact.