[1] : The Collaborative International Dictionary of English v.0.48

nog \nog\, n. abbrev. fr. noggin.
   1. a noggin.
      1913 webster

   2. a kind of strong ale. --halliwell.
      1913 webster

   3. eggnog.
      pjc

   egg nog a drink make from eggs beaten with milk, cream, and
      sugar, often spiked with rum or other alcoholic liquor,
      and sometimes seasoned with cinnamon; usually spelled
      eggnog. it is a traditional drink served at social
      gatherings during the christmas season.
      pjc
see also:
egg nog eggnog 

[2] : The Collaborative International Dictionary of English v.0.48

eggnog \egg`nog"\, n.
   a drink consisting of eggs beaten up with sugar, milk, and
   usually wine or spirits.
   1913 webster eggplant

[3] : WordNet (r) 2.0

eggnog
     n : a punch made of sweetened milk or cream mixed with eggs and
         usually alcoholic liquor

Eggnog >> E Words
Eggnog, definition of term: Eggnog
eggnog_pag1.html