"gak" clear description request

For a few months I have been removing the “gak” tag from a gif that I upvoted from the episode “to where and back again” only to have found it put back by the same person over and over again. The reason they are doing this I believe is because to them the “changeling slime” tag and “gak” tag are one in the same. I wouldn’t think much of this if not for the fact the “changeling slime” tag has several images that do not have the “gak” tag along with them. So instead of continuing or making this little tag war worse I’d like to request the “gak” tag be given a simple description like “a slime toy for children” to hopeful fend off mistagging things like changeling slime which is a by-product of changling cocoons.
 
(If I’m posting this in the wrong forum or if this topic has already been discussed, I apologize in advance, I don’t use the forums much)

@User500  
K. We decided to remove the “Gak” tag from those images. And have added a description to the gak tag itself. With links pointing to other, more appropriate tags.
 
I’ll leave this topic open for now in case anyone wishes to provide an alternate definition of GAK.