The bulk update request #5368 is pending approval.
mass update tail_penetration -> tail_penetrating
Reason: I was looking through some tags and I have noticed that both tail_penetration and tail_penetrating are beingnused for the same purpose except some notable post such as these.
But the rest of the posts has the same usage where I would suggest that
1. We update the tag description to avoid wrong usage and update all post having these tags except the named with the BUR.
Or
2. We update the tag description and go through each of the post manually to identify correct usage as a tagging project.