Well, I don't know what you mean by "around here"...maybe on this website, dunno...but I refer to bevel up and bevel down the same way everybody else has been referring to them since Black English gun flints have been made...and the black English gun flint in my photo is mounted bevel up.
If you’ll scroll down half way down through this technical article, there’s a black English flint illustrated with each of the surfaces named…the long slope is called the bevel.
http://www.gunsmithsociety.com/technical-flints.htm