Abby Posted on August 18, 2016August 18, 2010 by admin Knock-Knock who’s there? Abby Abby who? Abby Birthday to you! Spread the love Related posts: Knock KnockWho’s there?Howie!Howie who!I’m fine, Knock KnockWho’s there?May!May who?Maybe its Knock KnockWho’s there?Vassar girl!Vassar girl Knock KnockWho’s there?Montana!Montana who?Montana your