That's the mating howl of the fat Tumblrina seeking its natural mate, the male hipstercuck. The howl is deliberately tuned to nauseate and repel shitlords. You know those female anglerfish that mate and then absorb everything of the male but his genitals? Tumblrina/hipstercuck matings are like the reverse of that. The male's balls (and already miniscule self-respect) are glompsorbed by the female, and the emasculated once-man that remains is used as a semi-autonomous food-gathering organ until the inevitable early death of the female. The Dumpster/Holliday couple is a classic example of this horrific dynamic.