blurgle

/bler'gl/ [Great Britain] n. Spoken {metasyntactic variable}, to indicate some text which is obvious from context, or which is already known. If several words are to be replaced, blurgle may well be doubled or trebled. "To look for something in several files use `grep string blurgle blurgle'." In each case, "blurgle blurgle" would be understood to be replaced by the file you wished to search. Compare mumble, sense 6.