Word play

That that is is that that is not is not is that it it is. Lion-Eating Poet in the Stone Den spoonerism James while John had had had had had had had had had had had a better effect on the teacher. Colorless green ideas sleep furiously Japanese wordplay secret language game Xi xi xi double entendre portmanteau pun knock-knock joke aural illusion Tom Swifty Buffalo buffalo Buffalo buffalo buffalo buffalo Buffalo buffalo. satiric misspelling sensational spelling Time flies like an arrow; fruit flies like a banana lipogram