transitive. To drive or bring (a thing) violently against something else; to strike against or upon something else; to bring into collision.

transitive. To thrust, push; esp. to push violently or forcibly in a specified direction, to drive, dash. Chiefly with against, into, or through.

transitive. To drive, dash, knock (a thing, esp. a part of the body) sharply, usually against a hard surface. Frequently with against, on (formerly…

To bump; to strike, knock, or push; esp., to dash (the head, etc.) against something.

transitive. To strike with a heavy blow or thump; to knock, beat; to shake by knocking or beating. Also: to bang, slam (a door, etc.); frequently…

With adverbs or prepositions: To dash against, knock or cast down, etc., with or by a heavy blow or impact.

transitive. To dash against, dash about.

To cause (anything) to rap or bounce against, at, etc. This sense blends gradually with bob, v.3

transitive. To knock (a part of the body) against (also on) something.

transitive. To collide heavily or firmly with (a person or thing); to inflict a bump or jolt upon; to knock.

transitive. To bump thoroughly, to belabour.

To bump.

colloquial. transitive. To strike (something hard or unyielding), esp. with an audible, typically hollow-sounding, heavy thump; to bump, to bang.

transitive. To crash into or collide with; to crash (a vehicle); to damage (a vehicle) in an accident.