natty
n.— «Natural gas has taken a pounding. “Natty,” as it’s called in trading circles, has shed almost $10 in ten months, notching new contract lows last week following its explosion to $15 in the wake of Katrina.» —“Why natural gas is so cheap” by James Woodburn Daily Reckoning (London, England) July 20, 2006. (source: Double-Tongued Dictionary)