Grapefruit Man is a man made of grapes. He lives in the Maze of Grapefruit Man.
Although grapefruit man is just a copy&pasted vine of grapes, he states that he is Grapefruit Man because he is "grapes, fruit, and a man".
Trivia[]
As shown in the Praesent Terrarum video, he is a Brodyquest fanboy.