belly-land

from WordNet (r) 3.0 (2006)

belly-land
    v 1: land on the underside without the landing gear

from The Collaborative International Dictionary of English v.0.48

bellyland \bellyland\, belly-land \belly-land\v.
   to land on the underside without the landing gear; -- of
   airplanes.
   [WordNet 1.5] bellylaugh