In a wider, more informal context, an allusion is a passing or casually short statement indicating broader meaning. It is an incidental mention of something, either directly or by implication, such as In the stock market he met his Waterloo..
The definition of a bump is a light jolt or a swollen, raised lump on the body. An example of a bump is the act of two toy cars hitting each other. An example of a bump is a welt on the hand. To bump is defined as to collide lightly. An example of to bump is for a car to knock gently into the back of another.
Acquire a bump key. A bump key is a key that will fit the lock you want to bump, but which doesn't unlock it per se. As long as the key will fit in the lock, it can be turned into a bump key by filing every cut down to the lowest acceptable depth.. Bump open a tumbler lock. Bumping a lock is a quick, simple lock picking technique that is useful in the case of having to open a door that's been closed for a long time (for example, of an unused home on family property), or if you need to break into an elderly relative's house to make sure they're okay.