church key(redirected from a church key)
A tool used to remove caps from glass bottles and puncture lids on cans. The phrase can also be used simply as slang for a bottle opener. Be sure to bring a church key with you so we can open up the bottles! Here, use this church key to open that can of soup.
a two-ended device used to remove bottle tops and to pierce a hole in can lids. I'm looking for the church key so I can open this beer. She opened the can of tomato juice with the church key.
n. a beer can opener designed to puncture a can, leaving a triangular hole; a bottle opener. (Older. No longer widely known, but still in use. One type of bottle opener is formed from metal following the outline of a large keyhole. This may have contributed to the origin of this term.) Where is the church key when I need it?