Grapefruit is an abyssal demon that appears randomly throughout Prifddinas. He has also been spotted in the Slayer Tower, Kuradal's Dungeon, Morytania Slayer Tower dungeon, and the Wilderness. Once he appears in an area, he will wander around it (and occasionally teleport a few spaces) for around 3 minutes. He will occasionally say "Ellllfff...." or "...booorne..."
- Grapefruit is a reference to an abyssal demon, nicknamed "Grapefruit", that was lured by players from the Slayer Tower in Morytania to the Tower of Voices in Prifddinas.
- Grawnffrwyth means "grapefruit" in Welsh, a common naming scheme used with the Elven race.
- In the Slayer Tower, Grapefruit's examine information is the same as any other abyssal demon.
- The "Ellllfff...." and "...booorne..." that Grapefruit says is a reference to Mod Elfborne, the NPC version of Mod Osborne.