Question

Read the excerpt below and answer the question.

“Gimme a case-knife.”
He had his own by him, but I handed him mine. He flung it down, and says:
“Gimme a case-knife.”
I didn’t know just what to do—but then I thought. I scratched around amongst the old tools, and got a pick-axe and give it to him, and he took it and went to work, and never said a word.
He was always just that particular. Full of principle.

Huck’s remarks on Tom’s behavior shows an example of _____ meaning.