DCA85AA013

After lndg, the acft was parked on the ramp for aprx 39 min to load cargo. Drg that time, lgt freezing drizzle was falling, intermittently mixed with ice pellets & snw. The crew checked the acft surfaces from the cockpit & entry door, but observed no ice or snw adhering to the tops of the wings, nose section, windshield or above the door. The capt declined an offer to de-ice, tho otr acft were being de-iced. The takeoff was nrml (18 deg nose up attitude) until just after lift-off, then the acft entered an uncommanded l roll & both engs compressor stalled. The capt corrected with l aileron & rudder, then began aborting the takeoff. The acft touched dwn left of the rwy on the tail skid & r wing tip,aprx 5600' from the threshold & on a 070 deg hdg. It then traveled another 2025' in a sweeping right arc, hitting 2 rwy signs & came to rest hdg west with the r pylon bent down. Inv revealed a thin layer of ice (EST 0.15' thick) would have been on the wings, raising the acft's stall speed. When DC-9-15 acft stall, engs are susceptible to compressor stalls.