The phrase "full locomotion" refers to the ability to move or travel freely and easily in any direction or manner. It means having complete control over your movements and being able to go wherever you want to go. Full definition
I played plenty of full locomotion games for 5 - 6 hours straight without taking off the headset, feeling just peachy. (blog.us.playstation.com)
You can move with full locomotion and smooth turning (with dual shock 4 or aim controller) same as most any other game if you bother to check the options. (gameluster.com)
Apex Construct delivers full immersion through a highly interactive environment, which is both beautiful and perilous, and allows players to explore the surroundings at their own pace by using different movement options like Full Locomotion or Teleportation. (fasttravelgames.com)