Lob, v. t. [imp. & p. p. Lobbed p. pr. & vb. n. Lobbing.]
  2. To let fall heavily or lazily.
  And their poor jades
  Lob down their heads.   --Shak.
  To lob a ball Lawn Tennis, to strike a ball so as to send it up into the air.
  lob
       n 1: an easy return of a tennis ball in a high arc
       2: the act of propelling something (as a ball or shell etc.) in
          a high arc
       v : propel in a high arc; "lob the tennis ball"
       [also: lobbing, lobbed]