He is mentioned later in "You Forgot Your Floaties". While inside Magic Man's mind, Betty witnesses a memory of him and Grob Gob Glob Grod discussing GOLB at an unknown date in the past. It is revealed that GOLB attacked Mars at some point and "took" Magic Man's wife, Margles. Grob Gob Glob Grod believes that GOLB will return and Magic Man agrees, using the threat of GOLB as a pretext for building a security system on Mars that takes the shape of Margles. Later, Magic Man changes his mind, claiming that Grob Gob Glob Grod is wrong and GOLB is "probably not coming back."
GOLB has a massive muscular red body and he has a cubic head topped with a pyramid with the bottom half fraying upward. He has four round yellow eyes with green pupils, with the two eyes on top slightly larger than the two below. Up close GOLB has cracks around his eyes and mouth. He has a forked tongue that is large and purple. His hands have three fingers and his feet have two toes and one dewclaw. He has orange-yellow talons on his fingers and toes.
After GOLB "took" Margles, Magic Man traveled to Prismo's Time Room and wished that she would return but Prismo was unable to successfully bring her back. Golb's powers make him one of the most powerful entities in the universe. GOLB most likely traps his victims inside of his maw as mentioned in "Temple of Mars" and attempted in "Puhoy" although Finn managed to bounce off of GOLB's tongue.
Similarities to Grob Gob Glob Grod
There are several similarities between GOLB and Grob Gob Glob Grod:
- GOLB's head has a shape similar to that of Grob Gob Glob Grod's headwear.
- Finn meets GOLB when he dies in the Pillow World. In "The New Frontier", Jake claims that Grob Gob Glob Grod rules Glob World, where people in the Land of Ooo go when they die.
- Both have four of a certain body part: GOLB has four eyes and Grob Gob Glob Grod has four heads.
- "GOLB" is an anagram of "Glob".
- GOLB's name was originally revealed by Adam Muto on Spring. It was later officially revealed in "You Forgot Your Floaties."
- GOLB may have attacked Mars at Olympus Mons, because that is where Magic Man planned to install the defense system meant to protect Mars from him.
- GOLB's backside appears in promotional art for "Astral Plane."
- In "Whispers," it is implied that he has some sort of connection to The Lich.
- GOLB has a number of blocks floating around it that look similar to those seen at the end of "The Lich" and "Finn the Human."