Rose and I invented a new word this week. It’s a technical cycling term, so may not become widespread, but I think we may see rapid adoption of it in East Anglia and the Netherlands.
ishybutt (ˈɪʃibʌt) (also ishibutt)
noun the experience of sitting on a bicycle saddle, only to discover that it has been raining.
Hope you find it useful in daily conversation.