Knock KnockWho’s there?Zippy!Zippy who?Mrs Zippy! Posted on June 14, 2017June 14, 2009 by admin Knock KnockWho’s there?Zippy!Zippy who?Mrs Zippy! Spread the love Related posts: Knock KnockWho’s there?Chuck!Chuck who?Chuck and Knock KnockWho’s there?Peru!Peru who?Peru your Knock KnockWho’s there?Ike!Ike who?Ike-n’t stop Knock KnockWho’s there?Livia!Livia who?Livia me