Source : Webster's Revised Unabridged Dictionary (1913)

Noggin \Nog"gin\, n. [Ir. noigin, or Gael. noigean. Cf. lst
   {Nog}.]
   1. A small mug or cup.

   2. A measure equivalent to a gill. [Prov. Eng.]

Source : WordNet®

noggin
     n : informal terms for a human head [syn: {attic}, {bean}, {bonce},
          {noodle}, {dome}]