Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A lockpicking tool in the form of a key of the type generally used to open a lock, on which all pin position have been cut down to the lowest position, so that striking this key sharply with a hammer while applying turning force at just the right instant after the impact will 'bump' open a lock.

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  • a bump key is a key for a tiumbler lock with its ridges filed in such a way that when inserted in any tumbler lock and hit or "bumped" it will unlock that lock. As such is is a burglary tool used to open locks for which a person does not have an actual key.

    August 4, 2009