Plain English Meaning
A way of taking off from a surface that grabs the wheels, like grass or mud. You pull the yoke back so the nose stays up, get the plane into the air as soon as it will fly, then stay low for a moment to build up speed before climbing.
Full Definition
A takeoff technique used on surfaces such as grass, sand, mud, or snow, where the pilot keeps weight off the wheels as early and as long as possible to reduce drag from the soft surface. The control yoke is held fully aft during the initial roll to lift the nosewheel, the is allowed to at the lowest possible in , and the pilot then levels off to to a safe before climbing of ground effect.