For the record, irrumatio is Latin, not Japanese. In my mind, it would be better to use English tags as much as possible (or even exclusively, considering this is an English-language site, although I think that ship has sailed).
I think you mean "irrumatio" and I was sure that we already have that tag but IF it ever existed its gone. I suppose its hard to draw a line when to use english and japanese terms. A few tags are already acronyms, maybe we can now do short versions it for more ^^
"irrumatio (fellatio wherein the majority of movement is performed by the fellatee); face-fucking"
I think the name is ok, not great but it works with description. The term rough sex is not good as rough can be on any part of the person body. Face, pussy, anal, boobs, armpit, you name it.