A Wholphin. This is actually a real thing!
A wholphin or wolphin is an extremely rare hybrid born from a mating of a female bottlenose dolphin (Tursiops truncatus) with a maleFalse Killer Whale (Pseudorca crassidens). The name implies a hybrid of whale and dolphin, although taxonomically, both are within the “oceanic dolphin” family, which is within the “toothed whale” suborder. Although they have been reported to exist in the wild,there is currently only one in captivity, at Sea Life Park in Hawaii.