画蛇添足 (huà shé tiān zú): Draw a snake and add feet to it — Meaning & Stroke Order

Your explanation is already very clear; adding more details would be like drawing a snake and adding feet to it.

This plan is already perfect; your further modifications would be like drawing legs on a snake.

Adding this redundant clause to the agreement is undoubtedly an act of drawing a snake and adding feet to it.

The original flavor of this dish is already delicious; adding so many seasonings is simply like drawing a snake and adding feet.