A small child given to running around screaming. Unlike well-socialized children, who only scream when under duress (injury, physical attack by a large snake) a screechling will emit earbleeding screams apparently just to hear the sound of its own voice. These are often found in small packs in shopping malls and supermarkets, usually accompanied by mothers who barely acknowledge the screechlings' existence.
"Gads, did you hear the little screechling in the mall elevator? I think it ruptured my left eardrum. I don't scream that loud during an orgasm for crying out loud."
I see a celebrity who always says stupid things has said something stupid again and the neurotypicals are treating it like it's a big deal. What a load of neurotypical screeching.
This is done when one places a Chinese whistle in their ass hole. The whistle holder is then assisted by their partner, who breathes heavily into the securely mounted whistle until maximum pressure is achieved. Then the assistant removes mouth from whistle and immediately punches the whistle holder in the belly. The force from the blow will create the sound of a screeching locust. This works even better when the whistle holder is wearing some fluffy angel wings and green goggles.
I was worried last night that I would wake the kids when I gave my wife/husband a screeching locust blow, but they managed to sleep right through it. It's a good thing, because that would be a tough one to explain.