The conversation between human and AI assistant.
What is the peanut butter & jam joke on How I Met Your Mother?
Is there anything else related to the joke that the show references?
Yes, in later episodes, the phrase "peanut butter and jam" is referenced several times as a callback to this joke. For example, in one episode, Marshall suggests that he and Lily get "peanut butter and jammed" before going to a baseball game.