A light blow or jolting collision. / The sound of such a collision. / A protuberance on a level surface. / A swelling on the skin caused by illness or injury.

To knock against or run into with a jolt. / To move up or down by a step; displace.

(Internet) Posted in an Internet forum thread in order to raise the thread's profile by returning it to the top of the list of active threads.

(intransitive, literally) To collide with. / (transitive, literally) To cause (a thing) to collide with. / (transitive, idiomatic) To meet by chance.

simple past tense and past participle of bump

present participle of bump

The sound or action of a bump.

A surname.

plural of bumping

(Internet) Alternative form of bump