"My whole body. I can also become a sort of human boulder and roll in that form." Chouji leaves out the fact that he can harden his hair into spikes to combine with that technique.
He spreads his hands, now back to their usual size, and says, "We convert calories into chakra, and then use that to manipulate our bodies. That's where all the respect for food comes in. My clan is more dependent on it than most." When he's in uniform, Chouji actually wears the kanji for it on his chest. Out of uniform today, the symbol isn't present.
August 12th, action
He spreads his hands, now back to their usual size, and says, "We convert calories into chakra, and then use that to manipulate our bodies. That's where all the respect for food comes in. My clan is more dependent on it than most." When he's in uniform, Chouji actually wears the kanji for it on his chest. Out of uniform today, the symbol isn't present.