The crossword solution for the term 'It's Raining ___' is MEN, which is a three-letter word. This phrase is often used to describe a situation where there are a lot of MEN around, usually in a crowded or busy place. It is also used to describe a situation where a lot of MEN are doing something together, such as working on a project or playing a sport. The phrase is often used humorously to describe a situation where there are too many MEN and not enough women.