talk round

verb
  1. Also: talk over (tr, adverb) to persuade to one's opinionI talked him round to buying a car
  2. (intr, preposition) to discuss the arguments relating to (a subject), esp without coming to a conclusionto talk round the problem of the human condition
  3. (intr, preposition) to discuss (a subject) vaguely without considering basic factsthey talked round the idea of moving house quite forgetting they hadn't enough money
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012