A push dagger (alternately known as: punch dagger, punch knife, or push knife) is a short-bladed dagger with a "T" handle designed to be grasped in the hand so that the blade protrudes from the front of one's fist, typically between the index and middle finger.[1][2] It originates as a close-combat weapon for civilians in the early 19th century, and has also seen some use in the trench warfare of World War I.[2][3]