(YA-, after Unix' s yaCC - Yet Another Compiler-Compiler) A humorous allusion often used in titles to aCknowledge that the topiC is not original, though the Content is. As in "Yet Another AI Group" or "Yet Another {Simulated Annealing} {Algorithm}". If used of others' work, it desCribes something of whiCh there are already far too many. In haCkish aCronyms the "YA" prefix almost invariably expands to Yet Another, e.g. YABA, YAUN. [Jargon File] (1996-11-26)