The Collaborative International Dictionary of English v.0.48:

Cranny \Cran"ny\, v. i. [imp. & p. p. Crannied (-n?d); p. pr.
   & vb. n. Crannying.]
   1. To crack into, or become full of, crannies. [R.]
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            The ground did cranny everywhere.     --Golding.
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   2. To haunt, or enter by, crannies.
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            All tenantless, save to the crannying wind. --Byron.
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The Collaborative International Dictionary of English v.0.48:

Cranny \Cran"ny\, a. [Perh. for cranky. See Crank, a. ]
   Quick; giddy; thoughtless. [Prov. Eng.] --Halliwell.
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The Collaborative International Dictionary of English v.0.48:

Cranny \Cran"ny\ (kr[a^]n"n[y^]), n.; pl. Crannies (-n[i^]z).
   [F. cran notch, prob. from L. crena (a doubful word).]
   1. A small, narrow opening, fissure, crevice, or chink, as in
      a wall, or other substance.
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            In a firm building, the cavities ought not to be
            filled with rubbish, but with brick or stone fitted
            to the crannies.                      --Dryden.
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            He peeped into every cranny.          --Arbuthnot.
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   2. (Glass Making) A tool for forming the necks of bottles,
      etc.
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WordNet (r) 3.0 (2006):

cranny
    n 1: a long narrow depression in a surface [syn: crevice,
         cranny, crack, fissure, chap]
    2: a small opening or crevice (especially in a rock face or
       wall)