Arte says Knock Knock Trout Baseball 10 years ago A new knock knock joke from Mike Trout and Arte Moreno for the Oakland Athletics Share this: Weaver says Knock KnockDateAugust 24, 2014In relation toMemeKnock KnockDateApril 4, 2014In relation toMemeHey Billy, Knock Knock?DateAugust 2, 2014In relation toMeme