gasfrightus
Flatulence so bad it's frightening.
Having previously consumed the better part of a hair-covered, rotten soup bone she found on a drain grate next a dumpster, noise from the dog's intestines could be heard across the room. As the dog's lay at the foot of the sofa, her gasfrightus gave way to silent but deadly aromas of putrid noxiousness, sending her owners fleeing and gasping for fresh air.