The Collaborative International Dictionary of English v.0.48:

Snip-snap \Snip"-snap`\, n. [Reduplication of snap.]
   A tart dialogue with quick replies. [R.] --Pope.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Snip-snap \Snip"-snap`\, a.
   Quick; short; sharp; smart. --Shak.
   [1913 Webster]