“Over-egging the pudding” means embellishing or over-doing something to the extent that it’s detrimental to the finished product.

Although this sounds like an analogy about the chemistry of baking, or putting too many eggs in a cake batter, “egg” actually comes from the Anglo Saxon “eggian,” meaning to “excite.” This is still used in English in the phrase “egging someone on” to do something.

In “over-egging the pudding” analogy, someone is over-exciting, or over-mixing, the batter too much before it bakes — resulting in a tough or dense cake.

“We get it — you’ve injured yourself. Don’t over-egg the pudding.”