(idiomatic) A sexually suggestive dance involving exaggerated hip movements, especially a striptease dance.

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.

plural of bump key

A small sphere of solder used as a connection between devices and a printed circuit board

(vulgar, slang) To have sexual intercourse.

To hit one's fists together.

The hitting together of two people's fists, as a greeting or in celebration of an accomplishment.

simple past tense and past participle of fist bump

present participle of fist bump

(UK) A hard hat. / (US) A form of baseball cap.