An example of a silly sentence is provided by Lewis Carroll: "'Twas brillig, and the slithy toves did gyre and gimble in the wabe." For more about silly sentences, users can visit Reading With Kids and the PBS Kids website to find a series of silly sentence activities.
Silly sentences typically are grammatically correct sentences that make little common sense. Creating silly sentences involves combining seemingly random words to create fun sayings. A game to play with several people is to have one person begin a sentence with a word and have each following person add a word to that sentence. Players can take the sentence as far as they like, sometimes telling an entire silly story.