Yes, I have always been fond of Spoonerisms.
In this case, of course, it was in reference to the coast-hugging fog prevalent in the port where this skipper sailed out of. He would regularly have to wait for a brief break in the fog, and then "duck out" quick to get out in the clear.
- very apt boat name, with a touch of humour. Mind you, you'd want to be sure to get it right when calling it three times fast on the VHF!