cock ‧ a ‧ too /ˌkɒkəˈtuː $ ˈkɑːkətuː/ BrE AmE noun [countable]
[ Date: 1600-1700 ; Language: Dutch ; Origin: kaketoe , from Malay kakatua , from kakak 'older brother or sister' + tua 'old' ]
an Australian ↑ parrot with a lot of feathers on the top of its head