To strike with a cudgel.
To exercise (one's wits or brains).
Anything that can be used as a threat to force one's will on another.
A short heavy club with a rounded head used as a weapon.
To punch holes using a hole punch.
To create a NAT, WAN-to-LAN port forwarding on the router.
A tool that is used to make holes in stationery for ease of filing.