A Stack Exchange site I use has identified a tag that should be blocked, discussed it on Meta and come to an agreement that it should go (our request is here).
We and the site moderators understand that only SE staff can mark a tag as blocked. What we're not clear on, though, is how they expect us to get their attention on the matter.
What's the expected procedure for requesting that a tag be blocked? (Is there one at all?) Can we request it on our own site's meta? Is there a tag we need to use? Do we use the staff contact form?