Image you’re at a party to celebrate a friend’s birthday. It’s a Saturday or Sunday, the party’s been going on for quite a while and you’re starting to feel somewhat fatigued. In English and most other languages it would take a whole sentence to explain this situation.
In Estonian however, there’s a word that covers just such an eventuality – Sünnipäevanädalalõpupeopärastlõunaväsimus, which according to Corcaighist, means “The tiredness one feels on the afternoon of the weekend birthday party”. Or if you break it down into parts “birth.day.week.end.party.after.lunch.tiredness”.