Source : Webster's Revised Unabridged Dictionary (1913)

Causerie \Cause`rie"\, n. [F., fr. causer to chat.]
   Informal talk or discussion, as about literary matters; light
   conversation; chat.

Source : WordNet®

causerie
     n : light informal conversation for social occasions [syn: {chitchat},
          {small talk}, {gab}, {gabfest}, {gossip}, {tittle-tattle},
          {chin-wag}, {chin-wagging}]