A slang word for blundering fool, or muddle-headed person, commonly used in Singapore, especially in the army. Similar in meaning with pillock.
Commander to men when outfield: Which cockanathan shat under the tree without first digging a hole to shit in? Own up or I'll make you all prone 10cm away from it for 5 minutes!
or
Look, that moron is late again and giving lame excuses, what a cockanathan.
One of the male population who has such large gentilia, common terms such as hung or well endowed do not quite cover the enormity of the genitilia, see coctus maximus or Cocktimus Prime.
Since no one was listening to him at the party, John was forced to pull out his Cocktasaurus Rex to get everyone's attention.
The Cocktasaurus Rex's long hibernation was over, it was fully awakened from its slumber and on the prowl for its favorite prey, the rare and docile, bearded clam.