|Title(s)||The Sea Mother|
|Home plane||Elemental Plane of Water|
|Alignment||Neutral Evil (CE tendencies)|
|Portfolio||Darkness, Insanity, Revenge|
|Domains||Destruction, Evil, Water|
Blibdoolpoolp was first fully described in Shrine of the Kuo-Toa (1978) by Gary Gygax, and subsequently appeared in the compilation volumes D1-2 Descent into the Depths of the Earth (1981), and Queen of the Spiders (1986). She was fully detailed in Deities and Demigods (1980).
Blibdoolpoolp was detailed in the book Monster Mythology (1992), including details about her priesthood. Her role in the cosmology of the Planescape campaign setting was described in On Hallowed Ground (1996).
Blibdoolpoolp usually takes the form of a 20-foot-tall (6.1 m) nude human female, with a lobster's head and claws in place of humanoid parts. At close range, her gaze causes insanity.
Blibdoolpoolp's realm is called "The Murky Depths," and is located on the Elemental Plane of Water.
Blibdoolpoolp is worshipped chiefly by kuo-toa. It's been suggested that the froglike mother goddess worshiped by the grippli may be a more benign aspect of Blibdoolpoolp.
Priests of the Sea Mother are called "whips" and wear pearl-colored vestments, shell helms, and drape themselves in nets as part of ceremonies.
Holy days, temples, and rituals
Blibdoolpoolp's holy day is the new moon, and rituals are held in underwater shrines. Gems, pearls, humans, and lobsters (her sacred animal) are sacrificed to her monthly.
- Mentzer, Frank. "Ay pronunseeAY shun gyd" Dragon #93 (TSR, 1985)
- Gygax, Gary. Shrine of the Kuo-Toa (TSR, 1978)
- Gygax, Gary. Descent into the Depths of the Earth (TSR, 1981)
- Gygax, Gary. Queen of the Spiders (TSR, 1986)
- Ward, James and Robert Kuntz. Deities and Demigods (TSR, 1980)
- Sargent, Carl. Monster Mythology (TSR, 1992)
- McComb, Colin. On Hallowed Ground (TSR, 1996)
- Redman, Rich and James Wyatt. Defenders of the Faith (Wizards of the Coast, 2000)
- Noonan, David. Complete Divine (Wizards of the Coast, 2004)
- Christopher Perkins. Monster Manual (Wizards of the Coast, 2014)
- Baker, Richard; Joseph D. Carriker; and Jennifer Clarke-Wilkes. Stormwrack (Wizards of the Coast, 2005)
- Conforti, Steven, ed. Living Greyhawk Official Listing of Deities for Use in the Campaign, version 2.0. Renton, WA: Wizards of the Coast, 2005. Available online: 
- Dragon magazine #342 - “Spellcraft: Alien Blessings”