WordNet sense 1 (loiter about, with no apparent aim):

prowl

WordNet sense 2 (walk as if unable to control one's movements):

careen, keel, reel, stagger, swag

WordNet sense 3 (move abruptly):

pitch, shift

WordNet sense 4 (defeat by a lurch):

skunk

WordNet sense 5 (the act of moving forward suddenly):

lunge

WordNet sense 6 (an unsteady uneven gait):

stumble

WordNet sense 7 (abrupt up-and-down motion (as caused by a ship or other conveyance)):

pitching