lumber off
To depart or head off in a heavy, plodding, and ungainly manner. I stood completely still until the bear finally lumbered off. The drunken sailor slurred some incomprehensible insults before lumbering off toward the bar.
lumber off
to move or lope away heavily and awkwardly. The frightened bear lumbered off, and we left in a hurry. He lumbered off, leaving us there alone.