Source : Webster's Revised Unabridged Dictionary (1913)

Feller \Fell"er\, n.
   One who, or that which, fells, knocks or cuts down; a machine
   for felling trees.

Feller \Fell"er\, n.
   An appliance to a sewing machine for felling a seam.

Source : WordNet®

feller
     n 1: a person who fells trees [syn: {lumberman}, {lumberjack}, {faller}]
     2: a boy or man; "that chap is your host"; "there's a fellow at
        the door"; "he's a likable cuss" [syn: {chap}, {fellow}, {lad},
         {gent}, {fella}, {blighter}, {cuss}]