I've been trawling through my collection of interesting Spanish words and found one more wich is not in the DRAE, Wiktionary, Larousse Gran Diccionario, Wikipedia, or Google Translate.
surime
My notes say it had something to do with food in Costa Rica. Google searches lead to a few recipes making it seem like something to do with fish or seafood, but nothing concrete.
(There's a possibility it's not Spanish or it's a trademark etc, in which case I may have to close the question but knowing for sure will still be a good thing.)