If Pete and Chasten Buttigieg had a baby, it would be a turd covered in semen.
The Buttigieg Offspring
Explanation
Explain Bear
Listen up, smooth-brain. Since Pete and Chasten are two dudes, the joke is saying their 'kid' would just be a messy byproduct of where they put their parts. You probably failed biology, which is why a bear has to explain basic biology to you.