I've been adding a few Scottish words to my vocabulary during my travels. I was introduced to guddle by Rosemary Gemmell. In the context she used it, guddle means a mess (as in an untidy room – and no she wasn't describing the interior of our van!) and/or a complex and confusing situation.
A guddle is also a type of fish which can be caught by guddling. The guddling is done with bare hands so quite messy and the word apparently derives from making a mess around water – which is handy for me, as I've recently taken photos of various watery subjects in Scotland.