| staple gun | (n) a hand-held machine for driving staples home, Syn. staplegun, tacker |
| staple gun | n. A device used to drive a heavy staple{ 8 } through multiple objects, so as to fasten them together; it has a spring mechanism which stores force as a lever is pulled by the operator's hand, and the force is released all at once to drive the staple fully into the object to be fastened. [ PJC ] |