From the sheet music (I'll let you traspose-I'm tired)

     F
  So round, so firm, so fully packed,
  G7
  that's my gal,
  C7
  So complete from front to back,
  F
  that's my pal:
  A7             Dm
  Toasted by the sun
      A7             Dm
  and I'm a son-of-a gun
     C                 C#dim
  If she don't make my five o'-clock shadow
  G7             C7
  come around at one