The joke of Journey to the West is that Tang Priest just started to go to the Western Heaven to find Wukong. This joke is quite long.

One day, the wolf wanted to eat three little pigs. Two of the three little pigs are at the door and one is on the roof. Pig 1 and pig 2 are at the door, and pig 3 is on the roof. Who is the name of pig 1, where is the name of pig 2 and what is the name of pig 3? So there was a wonderful dialogue. (Wolf): Who are you? (Pig 1): Yes (Wolf): What? (Pig) 1: What's on the roof? Wolf: I mean, what's your name? (Pig 1): My name is "Who" and "What" is on the roof! (Wolf asks Pig 2 again): Who are you? Pig 2: I'm not a "who", he is a "who". Pointing to the pig 1 (Wolf): Do you know him? (Pig 2): Hmm! Who is he? (Pig 2): Yes. (Wolf): What? Pig 2: What is on the roof! (Wolf): Where? (Pig 2): "Where" is me. Who? (Pig 2): Who is he? Pointing to the pig 1 (Wolf): How should I know? Pig 2: Who are you looking for? (Wolf): What? Pig 2: He's on the roof? (Wolf): Where? (Pig 2): It's me. Who? Pig 2: I'm not a "who", he is a "who". (Wolf): Good heavens! (Pig 1.2): "My God" is our father. (Wolf): What does your father do? (Pig 2): No! The wolf couldn't stand it anymore and sighed: Why? (Pig 1.2.3): Do you know our grandfather? (Wolf): What? (Pig 1): No, our grandfather is "Why". (Wolf): Why? (Pig 1): Right! (Wolf): What is it? (Pig 1): There is no "why". Who? (Pig 1): Who am I? (Wolf): Who are you? (Pig 1): Yes, who am I? (Wolf): What? Pig 1.2): "What" is on the roof. ~ ~ ~ ~ The wolf shouted, Oh, my God! I'm crazy! So he jumped into the pot and cried, three pig brothers. Eat me, I have no attachment to life!