noun, masculine/aˈswan/plural: asuanes
an evil vampirelike ghoul spirit from Philippine mythos which impedes childbirth or causes miscarriage via its very long thin tongue that reaches the pregnant woman's uterus which the husband may drive away via swinging a sword or knife in the air until the woman gives birth
Borrowed from Tagalog aswang (or from the same word in other Philippine languages, such as Cebuano aswang, Hiligaynon aswang, etc).