BUR #7733 has been approved by @nonamethanks.
create implication single-shoulder_dress -> dress
For a while, I am surprised that (until I went and created the tags) there isn't a clothing tag on Danbooru that describes a specific type of clothes that feature an asymmetrical/diagonal-shaped neckline (ie. post #4414203, post #4711420, post #1828465, etc.; sometimes supported by a single strap, other times by a single sleeve), even though they are a common fashion trend in real life, kind of like how off-shoulder bikini did not have a defined tag until a couple months ago.
Of course, there is a possibility that this tag could be misused for off-shoulder clothes.
I would have requested implications for single-shoulder shirts and single-shoulder sweater, but they apparently did not meet the minimum post threshold.