When clothing has a mind of its own and can move or talk separately from the person wearing it.
Note that this tag should only be applied to images where the clothing is visibly alive. Even if you know that a particular character (such as Senketsu from Kill la Kill) is a living set of clothes, you should only use the living clothes tag on posts where the clothing is actually shown to be alive and acting as a living being. Don't rely on meta-knowledge and tag it on posts that appear to have a completely ordinary sets of clothes.