church key
noun
,
Slang.
1.
a small metal can opener having a sharp triangular pointed end for punching holes in the top of a beverage can, as of beer.
Origin
1950-55
British Dictionary definitions for
church key
church key
noun
1.
(
US
) a device with a triangular point at one end for making holes in the tops of cans
Slang definitions & phrases for
church key
church key
noun phrase
A bottle or can opener
(1950s+)