The term 'TO BE, TO FIFI' is a French phrase that translates to 'être, à FIFI'. This phrase is used to express the idea of being in a certain place or situation. It is often used to describe someone who is in a particular state of mind or feeling. For example, if someone says 'Je suis à FIFI', it could mean that they are feeling relaxed and content. The crossword solution for this phrase is 'ETRE', which is the French verb for 'to be'.