lurch forward
To move forward abruptly, jerkily, or joltingly. Suddenly, Tom lurched forward and ran to the railing so he could vomit over the side of the ship. The train lurched forward, and my coffee spilled all over my lap as a result.
lurch forward
to jerk or sway forward. The car lurched forward and shook us around. When the train lurched forward, we were pushed back into our seats.