They were arguing about language.

“All words enter the language through the senses,” he said. “We attach the words to our physical experience.”

“Not always,” she said. “There is no way to learn the word wamoblobby through the senses.”

“Well you got me there,” he said.

They then proceeded to wamoblobby for a while, but of course it is impossible for me to explain what that means using words that you’ve learned through sensory experience. But they were glammowacky jibbermim for real.