Egg

Small little yolk infested prison.
Can hold many beings such as chicken, bird, insect, and more.
Some egg consumable, why other aren't.
Is good with breakfast, as well as making other food, like cake.

Guy: "Hey, you want egg during trying time?"
Girl: "Yes, I want egg for trying time."
Guy: "Too bad."
Girl: "What, you egg?" She stabs him.