the calm way certain Soldiers, Airmen, Marines, or Sailors act under direct or indirect fire, combat conditions. More over the way they speak clearly on the radio calmly under fire.
TOC Roach: "wow I could really understand PVT Snuffy when he called up his 9-line, that guy is combat cool!"
by soldier that kicks ass June 7, 2011
Get the Combat Coolmug.