GNU Collaborative International Dictionary of English

Found one definition

1.       
   Shaps (shăps), n. pl. [Shortened fr. chaparajos. Cf. Chaps.] Chaparajos. [Western U. S.]
   
   A pair of gorgeous buckskin shaps, embroidered up the sides and adorned with innumerable ermine skins.  The Century.
   
   [Webster 1913 Suppl.]