隨身小折刀
Pocketknife \Pock"et*knife`\, n.; pl. {-knives}. A knife with one or more blades, which fold into the handle so as to admit of being carried in the pocket.
pocketknife n : a knife with a blade that folds into the handle; suitable for carrying in the pocket [syn: {pocket knife}] [also: {pocketknives} (pl)]