schmacting
n.— «He loathes, as he calls it, “schmacting,” which he defines as when an actor “crosses the line between doing just enough and doing more than enough—the artifice is visible. You know, that little shake of the head—it’s called eating the lights—that extra oomph and that little push, that ‘look at me!’”» —“First Time’s the Charm” by Jamie Painter Young Backstage Feb. 18, 2005. (source: Double-Tongued Dictionary)