Amid the endless coverage of this year’s Glastonbury Festival I came across this enigmatic nugget from Time Out magazine: ‘Dermot O’Leary played a DJ set. It kinda slapped.’ Kinda slapped, says Time Out’s feature-writer Chiara Wilkinson. Is that a good thing, or a bad thing? I resolved to work out what this might mean, through Poirot-style deduction, without having to look it up in one of the ever-expanding online dictionaries of slang. Clearly, the metaphor being used is s