DeathTongue was a musical group popular in Southern California in 1986. Department of Temporal Investigations agent Gariff Lucsly wore a "DeathTongue" T-shirt for his planned covert mission to that historical period. (VOY short story: "Almost... But Not Quite")

"DeathTongue" was the name of the band formed by Bill the Cat, Opus the Penguin, and Steve Dallas in Berkeley Breathed's "Bloom County" comic strip. The reference was intended by the author as detailed in his annotations, the image from the comic reflects this.
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