snap up

verb2

1. •
   (informal) To buy or acquire quickly, usually because the item is a bargain or in short supply or something one has been searching for.

   • I dashed into the mall; bought a gift; raced to the card store, snapped up a two-fer gift-bag special and was back in my car in 26 minutes. I could medal in power shopping. — 2004
2. •
   (informal, no longer used) To snap at (a person); to speak harshly to.