Inhalation and exhalation are two processes that are essential for human life. Inhalation is the process of taking in oxygen from the environment, while exhalation is the process of releasing carbon dioxide back into the environment. The term 'whiffed' can be used to describe both inhalation and exhalation, as it means to take in or release a small amount of air or gas. Therefore, the crossword solution for the term 'inhaled or exhaled' is 'whiffed'.