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A can or bottle opener having a usually triangular head.
[From the resemblance of the cap-gripping end of some bottle openers to the ornamental handles of large keys, such as those used to lock church doors.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Tools) US a device with a triangular point at one end for making holes in the tops of cans
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
a small metal can opener for punching holes in the top of a beverage can, as of beer.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
church key- Started out as slang for bottle opener in the early 1950s and was considered mildly shocking, even sacrilegious.
See also related terms for shocking.
Farlex Trivia Dictionary. © 2012 Farlex, Inc. All rights reserved.