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Bump may refer to:

Bump (Internet), raising a thread's profile by returning it to the top of the list of active threads
Bump (union), in a unionised work environment, a re-assignment of jobs on the basis of seniority
Bump (football), a body contact alternative to a tackle and shepherding method in Australian Rules Football
Bump (rowing), a feature of rowing at Oxford and Cambridge
Bumps race, a type of rowing competition
Bump mapping, a computer graphics technique
Speed bump, a raised portion of road designed to slow traffic
Mountain bump, a seismic jolt occurring within a mine
Lock bumping, a method of lock picking
The bumps, a birthday tradition
In entertainment:

Bump (television), a short video segment used in advertising
Bump (professional wrestling), making actual contact with another individual, an object, or the ground
Bump (TV series), a 1990 children's programme featuring an elephant
"Bump (song)", a 2005 single by Raven-Symoné
Bump (album), a Jazz album recorded by musician John Scofield in 2000
Bump (dance), a dance from the 1970s disco era
Bump (pricing game), a game played on The Price Is Right from 1985 through 1991
Mr. Bump, a Mr. Men character
"Bump, Bump, Bump", a 2003 single by B2K featuring P. Diddy
The Bump, a 1974 hit single by Kenny
Bump may also refer to:

The removal of passengers from an overbooked airline flight
Colloquialism for a skin lesion such as pimple, blackhead, etc.
A "shout out"
A dosage of some illegal substance (slang, most often in reference to cocaine)
The basketball elimination game Knockout (game)