A penis puppetrymove in which the penis is brought across the top of the wrist, like a watch. You then get someone to ask you what time it is, to which you enthusiasticly reply 'cock-o-clock!!!'
Pook: Ask me what time it is.
Victim: What time is it?
Pook: COCK-O-CLOCK!!!!
See wristwatch, penis puppetry, cornish pasty, the brain