What does "doegling" mean?

Doegling: The beaked whale (Balænoptera rostrata), from which doegling oil is obtained. DOE, JOHN Doe, John. (Law) The fictitious lessee acting as plaintiff in the common-law action of ejectment, the fictitious defendant being usually denominated Richard Roe. Hence, a fictitious name for a party, real or fictitious, to any action or proceeding.