meta: /me't*/ or /may't*/ or (Commonwealth) /mee't*/ adj.,pref.
[from analytic philosophy] One level of description up. A
metasyntactic variable is a variable in notation used to describe
syntax, and meta-language is language used to describe language.
This is difficult to explain briefly, but much hacker humor turns on
deliberate confusion between meta-levels. See hacker humor.