They fall backwards into trenches, the camera jolting with the concussive force of the explosions.
Completing the circuit, laughter of a particularly boisterous and concussive variety interrupted his fragmentary speech.
concussion con·cus·sion (kən-kŭsh'ən)
A violent shaking or jarring.
An injury to a soft structure, especially the brain, produced by a violent blow and followed by a temporary or prolonged loss of function.