The crossword solution for the term 'EXTREMELY FAST' is 'STARVE'. This term is used to describe something that moves or happens at a very high speed. It can also be used to describe a situation in which something is done quickly and without taking the time to think it through. In this context, the term 'STARVE' implies that the action or movement is so FAST that it is almost as if it is being deprived of the time it needs to be done properly.