Upside Down Mad LibsBy: Roger Price, Leonard Stern, Mad Libs Series: Mad Libs The idea is simple. Someone asks for a part of speech: a verb, a noun, an adjective, or an adverb. We've included definitions and examples of the parts of speech in case you've forgotten. Players call out their ideas to fill in the blanks. In the end, you have a story reeling from one silly sentence to another until nothing makes sense, but it all makes you laugh. That's what you call a Mad Lib