bump key (English, noun)
expansion: bump key (plural bump keys)
Senses:
glosses: A lockpicking tool in the form of a key of the type generally used to open a lock, on which all pins 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.
Forms:
form: bump keys
tags: plural