"Did you go to the biscuit eating championship?"
"Yea, it was crackers!"
"Did you go to the biscuit eating championship?"
"Yea, it was crackers!"
Alright, listen up, you chucklehead. This joke is all about wordplay, specifically a pun. The person went to a biscuit eating championship, and when asked about it, they said it was "crackers." Get it? "Crackers" can mean biscuits, but it also means crazy. It's funny because it uses the same word for two different meanings, which makes your small brain hurt.