Source : Webster's Revised Unabridged Dictionary (1913)

Shin \Shin\, v. t.
   To climb (a pole, etc.) by shinning up. [Slang]

Shin \Shin\, n. [OE. shine, schine, AS. scina; akin to D.
   scheen, OHG. scina, G. schiene, schienbein, Dan. skinnebeen,
   Sw. skenben. Cf. {Chine}.]
   1. The front part of the leg below the knee; the front edge
      of the shin bone; the lower part of the leg; the shank.
      ``On his shin.'' --Chaucer.

   2. (Railbroad) A fish plate for rails. --Knight.

   {Shin bone} (Anat.), the tibia.

   {Shin leaf} (Bot.), a perennial ericaceous herb ({Pyrola
      elliptica}) with a cluster of radical leaves and a raceme
      of greenish white flowers.

Shin \Shin\, v. i. [imp. & p. p. {Shinned}; p. pr. & vb. n.
   {Shinning}.]
   1. To climb a mast, tree, rope, or the like, by embracing it
      alternately with the arms and legs, without help of steps,
      spurs, or the like; -- used with up; as, to shin up a
      mast. [Slang]

Source : WordNet®

shin
     v : climb awkwardly, as if by scrambling [syn: {clamber}, {scramble},
          {shinny}, {skin}, {struggle}, {sputter}]
     [also: {shinning}, {shinned}]

shin
     n 1: the front part of the human leg between the knee and the
          ankle
     2: a cut of meat from the lower part of the leg
     3: the 22nd letter of the Hebrew alphabet
     4: the inner and thicker of the two bones of the human leg
        between the knee and ankle [syn: {tibia}, {shinbone}]
     [also: {shinning}, {shinned}]