Heh, good scene. The castaways were standing around saying ‘oh what are we going to do for food?’ and Locke throws a Kabar into a seat from the plane and he says ‘We Hunt!’.
That's right! That was in the Season 1 episode "Walkabout", which explained what Locke was doing in Australia before boarding the flight. That's still my favorite episode of the entire series. :-)