In a classic cartoon, any non-fatal (which is to say, just about every) head injury immediately results in a huge swelling the size of an orange or larger, usually pushing its pink, fleshy way through the victim's hair. Sometimes they come pre-bandaged. May also erupt in the exact shape of the object that caused them. Attempts to shove the lumps back into one's head will usually be answered with a lump of equal-size appearing on the other side of the head... or sometimes somewhere else entirely. Not to be confused with Your Head Asplode. Examples of Cranial Eruption include: