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.
An expressive form of Dirty Dynamite that sores from your colon at such a rapid speed that it makes you mimic the unpleasant sounds of a screeching owl.
End Results: Self induced Pink Sock & shredded linoleum from the clenching of your toe claws.
Oh my God Bertha, after eating that macho combo burrito from Del Taco, I was buckled up in the restroom with a screeching owl.