Ah, not just a regional speciality then, but a late night after drinking regional speciality, served by the local incarnation of Cut-Me-Own-Throat Dibbler.
Any seasoned traveller soon learns to avoid anything wished on them as a‘regional speciality’, because all the term means is that dish is so unpleasant the people living everywhere else will bite off their own legs rather than eat it.
https://www.visittallinn.ee/eng/visitor/discover/articles-guides/estonian-cuisine
