Here's a brand new goose joke:
Why did the goose go to the gym?
Because it wanted to get in some egg-cellent abs!
Explanation: This joke sets up the expectation that the goose is going to be working out for a typical reason, but the punchline subverts this expectation by using the word "egg-cellent" (meaning excellent, but referencing the goose's eggs) to describe its abs. The humor comes from the unexpected twist on the word "egg-cellent" and the absurdity of a goose, an animal not typically associated with weightlifting, being described as having excellent abs. The joke also relies on the listener's familiarity with fitness goals and the unexpected connection between the goose's species and this concept, and the use of a clever play on words (egg-cellent vs. excellent) adds to the humor.