- You may be looking for the slang term favoured by Tegan.
Rabbits on Earth
On Earth, rabbits were so prized for their meat that they could inspire poaching. This certainly happened in England around the time of the Great Fire of London. (TV: The Visitation) Centuries later, Ernie Clements, the poacher who worked the grounds of Marcus Scarman's house, caught a rabbit shortly before spotting a robot mummy removing itself from one of his traps. (TV: Pyramids of Mars)
Rabbits were also kept as pets. The Fifth Doctor, Nyssa and Tegan Jovanka once met a boy named Rithros who had lost his pet rabbit. The Doctor used his celery stick to lure the animal back to his master. (PROSE: Goths and Robbers)
In 1562, the Tenth Doctor came across a rabbit in England and, believing it to be a Zygon in disguise, gave it an intimidating speech, only to realise that it was just an ordinary rabbit, amending it to a "general warning". (TV: The Day of the Doctor)
"Rabbits!" was a favourite interjection of Tegan Jovanka. (TV: Logopolis, PROSE: Graham Dilley Saves the World) The Eleventh Doctor once used the word in a similar way. (COMIC: Hunters of the Burning Stone)
The Eighth Doctor and C'rizz once encountered some rather large rabbits on Caerdroia. At the time, the Doctor told C'rizz that there were rabbits on Gallifrey, as well, but they were "rounder and cuddlier" than Earth rabbits. (AUDIO: Caerdroia)
While trapped in an Alice in Wonderland-inspired reality, one of the characters encountered by Peri Brown was a version of the story's White Rabbit who strongly resembled the Sixth Doctor. (COMIC: Salad Daze)