[1] : The Collaborative International Dictionary of English v.0.48

lagniappe \lagniappe\, lagnappe \lagnappe"\, n. also spelled
   lagnappe.etym. uncertain.
   1. in louisiana, a trifling present given to customers by
      tradesmen; a gratuity.
      1913 webster

            lagniappe . . .is something thrown in, gratis, for
            good measure.                         --mark twain.
      webster 1913 suppl.

   2. a tip or gratuity.
      pjc

   3. hence: anything obtained gratuitously or unexpectedly.
      pjc
see also:
lagnappe 

Lagnappe >> L Words
Lagnappe, definition of term: Lagnappe
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