leprechaun
 n.— «Today’s corporate scandals have produced Lady Godiva (full disclosure) and the leprechaun (elusive executives who hide their millions; also spelled lepre-con), and then there’s Enronitis (stock hit hard by accounting irregularities).» —“In Street lingo, Bo is up, J.Lo is down” Newsday (N.Y.) July 11, 2004. (source: Double-Tongued Dictionary)