Ebirah is a giant lobster-like kaiju created by Toho, debuting as the title menace of Ebirah, Horror of the Deep in 1966, where it battles Godzilla on a remote island. The creature returned in later entries including Godzilla: Final Wars from 2004, and its screeching cry became part of Toho's stock library of monster sounds. Online, the roar circulates on soundboards and in kaiju fan edits, where it is shorthand for an old-school sea monster threat. It endures because few sounds scream giant crustacean menace so instantly.