Flooring it is a term used to describe the act of accelerating quickly and forcefully. It is often used in reference to driving, but can also be used in other contexts. The crossword solutions for flooring it are 'TEARING' (7 letters). TEARING is an action that involves ripping or splitting something apart with force. In this context, it implies that the acceleration is so forceful that it feels like the car is being ripped apart.