big timber
n.— «As recently as 10 years ago, it was possible for a pool player to earn a living hustling, provided he was armed with the requisite chops and disposition.…Odds were good that there was at least one unsuspecting local in the joint with an inflated impression of his talent for pocketing balls, and thus a willingness to throw down “big timber” against the out-of-towner.» —“Jump the Shark” by L. Jon Wertheim New York Times Nov. 24, 2007. (source: Double-Tongued Dictionary)