Part 180: Hideyoshi's Question (Wrong Answer)

"Wahhahahahahahahaha. Guess that was a bit too hard...!"
"I know what floated down the river the day after that. A hassaku orange, right?"
"Yep. And the day after that, it was probably an i... i... hmmm... I can't think of a veggie that starts with 'i'!"

I'm not sure I understand. No, I don't even have a clue.