Okay fine, I looked it up myself....
nog [nog]
nog1 [nog] Show IPA
noun
1. any beverage made with beaten eggs, usually with alcoholic liquor; eggnog.
2. a strong ale formerly brewed in Norfolk, England.
Origin: 1685–95; origin uncertain
nog2 [nog] Show IPA noun, verb, nogged, nog·ging.
noun
1. a block of wood, as one inserted into brickwork to provide a hold for nails.
2. any wooden peg, pin, or block.
3. Also, nogging. one of a number of wooden pieces fitted between the principal timbers of a half-timbered wall.
verb (used with object)
4. to fill (a framed wall or partition) with small masonry, as bricks or stones.
Origin: 1605–15; perhaps variant of knag, Middle English knagge spur, peg
Source:
http://dictionary.reference.com/browse/nog