Meanings
idiomatic · colloquiala laceration on the scalp (which due to the hair and strong bleeding may look as though it were a deep hole)
Der Peter ist gestern von der Mauer gefallen und hatte ein Loch im Kopf.Peter fell off the wall yesterday and had a big wound on his head.
Used other than figuratively or idiomatically: see Loch, im, Kopf.
Die Moorleiche hatte ein Loch im Kopf, was auf einen gewaltsamen Tod hinweist.The bog body had a hole in its head, which indicates a violent death.