Putting 3/4 of your arm up a girls ass (from behind), then hooking the young lady in the stomach as you remove aforementioned arm. Thus inciting a landslide of feces from her rectum.
The final phase of the graboid lifecycle. Just like shriekers, they hunt using heat sensors on their head. They are capable of flying by mixing a chemical compound inside their bodies and igniting it out their ass to achieve blast off.