The Gremloblin is a creature and a villain from Gravity Falls. It is said that when you gaze into its eyes, you can see into your worst nightmares, which is apparently true as one person was sent to the hospital because of this.
In the episode "Boss Mabel", Dipper catches a live Gremloblin to show to the guests at the Mystery Shack. One person ended going to the hospital after gazing into the creature's eyes. The Gremloblin ended up going on a rampage, but Mabel ended up defeating the creature by redirecting its hypnotic gaze back to the creature, causing the creature to look at its worst fear and run off back into the woods in terror.
- It is a combination of a gremlin and a goblin.