Knock knock jokes

Knock-knock jokes are one of the best-known forms of the pun, and represent a time-honoured "call and answer" exercise. Developmental psychologists study knock-knock-joke usage in younger children, as it provides valuable insight into how children advance their language skills. The standard format has five lines: The punster: Knock-knock The recipient: Who's there? The punster: a name The recipient: a name plus who? The punster: the punch line Quotes [Francisco at his post. Enter to him Bernardo.] Bernardo: Who's there? Francisco: Nay, answer me: stand, and unfold yourself. William Shakespeare, Hamlet, Act 1, Scene 1 (first two lines) The play is described in Slings and Arrows as "the longest knock-knock joke in history". External links Knock-knock joke Category:Comedy