broken egg
Refers to an egg that has cracked or been broken, often used literally. Can appear in cooking contexts or as a metaphor for something irreparable.
Please put the broken egg into the bowl.
A broken egg had fallen on the floor.
Phrase composed of the past form of 割れる (to break, crack) and 卵 (egg). The exact origin as a set expression is uncertain; it is a straightforward descriptive phrase.