Bobdown, I sympathise, and I feel it must be infuriating to see such an error. The 'muppets' at the Oxford Dictionary of English got it wrong too. Me, I'll take it as a valid answer as far as the puzzle is concerned - I'd always check dictionaries before Google. I'd say that I'd try to remember the correct meaning for use in the real world, but I don't think it's a phrase that would ever pass my lips.
There have been several occasions when 'wrong' definitions have featured in Chambers (and probably in other dictionaries). The ones I've seen have always been slightly technical, specialised - things like a something not being a true radical because... and XYZ is definitely NOT a fern because....
I know we've had lists before of humourous definitions (the dreaded 'mullet', for example), but I don't think there's beem a compilation of errors.