met·at·or·i·al: n. 1.Commentary about commentary. Posted on November 9, 2000 By No Comments on met·at·or·i·al: n. 1.Commentary about commentary. M3TAcubed met·at·or·i·al: n. 1.Commentary about commentary. ex: Much of the content on kottke.org and most other weblogs is metatorial in nature; people are commenting on other people’s comments. — Jason Kottke, Wordsmith