to walk or move suddenly in an uncontrolled or unsteady way
lurch forward/to/towards/into etc
Sam hit the gas and the car lurched forward.
He lurched to his feet.
used to say that your heart or stomach seems to move suddenly because you feel shocked, frightened etc:
Virginia's heart lurched painfully in her chest.
3 also lurch from crisis to crisis
to seem to have no plan and no control over what you are doing:
The industry lurches from crisis to crisis.