'Snails
interj. | 1. | God's nails, or His nails, that is, the nails with which the Savior was fastened to the cross; - an ancient form of oath, corresponding to 'Od's bodikins (dim. of body, i.e., God's dear body). |
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.