Definition of: bump

(bump) v.t.
1. To come into contact with; knock into.
2. To cause to knock into or against.
3. U.S. Colloq. To displace, as from a position or seat.
—v.i.
4. To come into contact; knock together.
5. To move or proceed with jerks and jolts.
—to bump off Slang To kill, especially with a gun.
—noun
1. A violent impact or collision; a heavy blow.
2. A protuberance like that caused by a blow.
3. The act of bumping.
4. One of the protuberances of the human head said to denote a certain faculty.
5. Aeron. A gust of wind striking the surface of an aircraft with the effect of a sharp blow. [Imit.]