cockatoo n.1
the penis.
Gargantua and Pantagruel (1927) I Bk I 44: And some of the other women would give these names, my Roger, my cockatoo, my nimble-wimble, bush-beater, claw-buttock, evesdropper, pick-lock, pioneer, bully-ruffin, smell-smock, trouble-gusset, my lusty live sausage. | (trans.)