During the course of fellatio, a normal person would typically get the man's penis about half way in their mouth, but however, cock gobblers are one of the very few people, able to fit the entire erection inside of their mouth.
Person 1: Hey Steve, did you see Andrea at the reunion last night?
Person 2: Hell yeah! She took my huge thing down like a cock gobbler!
Person 1: DAYUM NIGGA!!!