Ugandan key
An 8 ounce claw hammer. Predominantly used by ugandan bank robbers who use them to break open bulletproof glass barriers (even if that barrier is used to protect a bank teller sitting inside a counter enclosure made of cardboard).
Robber: You betta opan dis door.
Teller: No bruder.
Robber: I have a key.... Ugandan key (breaks open da door).
Teller: No bruder.
Robber: I have a key.... Ugandan key (breaks open da door).