WordNet (r) 3.0 (2006):

daisy cutter
    n 1: a bomb with only 10 to 20 per cent explosive and the
         remainder consisting of casings designed to break into many
         small high-velocity fragments; most effective against
         troops and vehicles [syn: fragmentation bomb,
         antipersonnel bomb, anti-personnel bomb, daisy
         cutter]
    2: a batted or served ball that skims along close to the ground