The tag alias #71621 y_butt -> y_anus has been approved.
Reason: x_anus has an x_butt alias, so y_anus should have a y_butt alias for parity between the tag aliases and catching a reasonable error.
EDIT: The tag alias y_butt -> y_anus (forum #410795) has been approved by @Rainbow_Dash.
Updated by auto moderator