Acid egg

An "acid egg" is a slang term with varying meanings, often relating to pranks, sabotage, or chemical reactions involving eggs and acidic substances. The specific meaning is highly dependent on context.

One common understanding involves using an acid, like vinegar or lemon juice, to dissolve the shell of an egg while leaving the membrane intact. This results in a rubbery, translucent egg that can be bounced (with care) or used as a visual aid in scientific demonstrations of osmosis.

Another interpretation, more malicious in nature, refers to the deliberate introduction of an acid into an egg, potentially intended as a prank or a means of causing harm. The consequences of ingesting such an egg would be dependent on the type and concentration of the acid used, and could range from mild discomfort to severe injury.

The term may also be used figuratively to describe a fragile or volatile situation, drawing a parallel to the easily damaged nature of an egg and the corrosive nature of acid. For example, "walking on eggshells" around a delicate situation might be described as handling an "acid egg."