There have been several tag Wiki and Wiki excerpt edits in the last half-day that appear to be copy/pasted from Wikipedia without regard to the astronomical context of the terms.
I've voted to reject several and I advise others to do so as well to put a speedy if at least temporary hold on this activity until it's reviewed/discussed here.
The reason that the Wiki and excerpt exist are to provide usage guidelines for users deciding how to tag their question. They start typing a tag's name and the excerpt appears. What it's supposed to do is to help them decide if this tag belongs on their question in this site, not to give a general or humorous definition for general information or entertainment.
Usage guidance, also known as a tag wiki excerpt, is a short blurb that describes when and why a tag should be used on this site specifically.
These rejections were on things like
Enthusiasm is wonderful, but let's make sure each change improves the function of what's being changed!