Bimble
Bimbling along ...
... or (subconciously ) seen the 'Answers' section of the next day's paper.That sounds like nonsense but somebody said that kind of thing to me once and I put it to the test with cryptic crosswords. I have often got stuck on crosswords in the evening and given up on them. Next morning I can usually pick up the same crossword and rattle off the last 10 or 12 answers in a matter of seconds. I'm sure that I must have been thinking about the clues while I was asleep.