Peculiar Speech Form is an IDIOM, which is a phrase or expression that has a figurative meaning that is different from its literal meaning. It is often used to express something in a more concise way than would be possible with literal language. Idioms are commonly used in everyday speech and writing, and can be found in many different languages. Peculiar Speech Form is an IDIOM that is used to describe a type of speech that is strange or unusual. It is often used to describe someone who speaks in a way that is not typical or expected.