Bowl Over Meaning

(idiomatic) To overwhelm with astonishment or wonder; to flabbergast

Example: 1918, Edgar Rice Burroughs, The Land That Time Forgot Chapter VIII
  This tribe lived largely upon the smaller animals which they bowled over with their stone hatchets after making a wide circle about their quarry and driving it so that it had to pass close to one of their number.
2011 September 2, “Wales 2-1 Montenegro”[1], BBC:
  The Celtic midfielder appeared to be bowled over by Milorad Pekovic but Italian referee Luca Banti waved play on.