I will step up and explain the question.
Patrice sent me photos of a knife he was making asking for my critique. I answered that the main problem was that it wasn't a real knife, but a fantasy knife. I didn't mean to imply that the knife was poorly made, or wouldn't cut things, but that it was not a functional knife.
What makes a knife "real" to me is the ability to be used primarily as a knife. A fantasy knife, or an extreme art knife may be lovely, but they are not made to any ergonomic or structural norms. A knife with zig-zag razor wings for a guard is surely deadly, but not a real knife. A knife made in shapes that will not work in the hand ,or with blades shaped in ways that they will be difficult to use are not real knives.
To say it in a short sentence - If it can not be easily used as a knife, easily transported, and safely used, it is not a real knife.
If Patrice wishes to post the knife photos, then the discussion can be more specific to that one knife, but the above thoughts are the way I see a "real knife" in general.