covered mouth utility alias

BUR #20266 has been rejected.

create alias mouth_under_clothes -> covered_mouth

Utility alias.

I have a hard time believing someone is going to search mouth under clothes to find someone wearing a mask or scarf or something.

This bulk update request is pending automatic rejection in 5 days.

This bulk update request has been rejected because it was not approved within 45 days.

The bulk update request #20266 (forum #255919) has been rejected by @DanbooruBot.