"Witty repartee" refers to a quick and clever conversation or exchange of remarks. It involves humorous, clever, and witty comebacks or responses between individuals. Full definition
In the past the philosopher had folk with whom he could share the deepest of longings, or if not that, he could at least find witty repartee with others. (firstthings.com)
When Christians are persecuted, terrorized and executed in communist or Muslim countries this is a matter for serious discussion and action, not witty repartee to prove who is the smartest kid on the block. (nakedpastor.com)
During witty repartee with «Max,» Ethan reemphasized that the disk sold to her by Job was «worthless... it's bait, part of an internal molehunt,» and told her he wanted to ask Job why he had been «disavowed» - he then promised to «deliver the actual NOC list,» while warning her not to open up the «worthless» disk that was equipped with a homing device, that would automatically summon CIA agents within no more than 10 minutes. (filmsite.org)