RHYME IN TIME is a phrase that is often used to describe a situation in which two people are speaking or performing in unison. The term can also be used to describe a situation in which two people are able to come up with a rhyme or poem on the spot. The crossword solution for this term is RAP, which is a type of music that is characterized by its use of rhyming lyrics and a steady beat. RAP is an acronym for Rhythm and Poetry, and it has become one of the most popular genres of music in the world.