angry dragon is what i've heard it called...usually due to the fact that the girl likely wouldn't be very happy as it usually involvles her choking (usually involuntarily) on your cock right when you come...similar to a drink coming out of your nose when you laugh whilst drinking...
hmmm...an old thread that i once participated in...a-fuckin-mazing, anyway in my experience girls get quite upset when cum enters their nostrils regardless of which direction it's going...