Asophogus is derived from the latin word "esophagus". The new context is used when a violent act or a malicious attempt to injure is created around the area of the esophagus. The "e" is replaced with an "a" because A stands for "asshole". A specific classification of a human-being who would generally attempt this kind of assault.
Example 1: IM GONNA RIP OUT YOUR FUCKING ASOPHOGUS BECAUSE IM AN ASSHOLE YOU BITCH
Example 2: I will make a quick incision just below your asophogus and in fact, it will hurt.