Which bus crossed the ocean?

Q: Which bus crossed the ocean? 🌊🚌 A: The hippopota-"bus"! 🦛🚌

Explanation: The joke plays on the word "bus" by incorporating a pun with the word "hippopotamus." By combining the words, we create a playful image of a hippopotamus driving a bus across the ocean, which is quite absurd and humorous. The use of the 🌊 emoji represents the ocean, while the 🦛 emoji represents the hippopotamus, adding a fun visual element to the joke.