The Collaborative International Dictionary of English v.0.48:

-footer \-foot"er\ suff.
   a suffix designating something with a length of (so many)
   feet; -- used only in combinations with a numerical prefix;
   as, he is a six-footer; the golfer sank a 40-footer; his
   yacht is a 60-footer.
   [WordNet 1.5]

The Collaborative International Dictionary of English v.0.48:

footer \foot"er\ n.
   a person who travels by foot.

   Syn: pedestrian, walker.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

footer
    n 1: (used only in combinations) the height or length of
         something in feet; "he is a six-footer"; "the golfer sank a
         40-footer"; "his yacht is a 60-footer"
    2: a person who travels by foot [syn: pedestrian, walker,
       footer]
    3: a printed note placed below the text on a printed page [syn:
       footnote, footer]