Today's BWOTD is one that originally came from the former British Colony of India:
"I thought it would be poor quality, but it was pukka!"
'Pukka' = good stuff/the genuine article
This is a word you heard more in the 1980-90's in the UK, it seems to have gone out of 'fashion' somewhat, but it's still popular in London.
It originates from the Hindi word 'pakka', meaning substantial.