An expression used in the place of knock on wood. Used to express something that will or will not happen. Usually followed with a light tap of the ballsack.
Onicock is a new species of rats named after the only queen of rape Nicki Minaj.
Oh look, is that an Onicock?
Me: Yes honey, she used to flop on the chart and apologize rapists and pedophiles. She has now metamorphosed into a rat as what she deserves. She's over now *Hysterical laugh*