WordNet (r) 3.0 (2006):

snap up
    v 1: get hold of or seize quickly and easily; "I snapped up all
         the good buys during the garage sale" [syn: snap up,
         snaffle, grab]

Moby Thesaurus II by Grady Ward, 1.0:

28 Moby Thesaurus words for "snap up":
   abduct, animate, arouse, carry off, dynamize, electrify, energize,
   enliven, exhilarate, fire, galvanize, hearten, inflame, invigorate,
   jazz up, kidnap, kindle, liven, pep up, perk up, quicken, rouse,
   shanghai, stimulate, throttle, vitalize, warm, zip up