Repartee
Etymology
From French repartie "a reply, retort," from repartir "to reply promptly, set off again" (re- "back" plus partir "to divide, depart," from Latin partire). It was originally a fencing term for a quick counter-thrust made immediately after parrying — the metaphor of conversation as a duel is built into the word.
noun · /rep-ar-TEE/
Quick, witty replies exchanged in conversation.
What it names
A handle for verbal swordplay — the skill of the fast, clever comeback that turns another’s remark to advantage on the spot.
Example
Her repartee was so fast that hecklers learned to stay quiet during her set.
Related idea
Distinct from banter: repartee is the sharp, individual, competitive comeback prized for cleverness and timing, while banter is the warmer, communal, ongoing teasing that bonds a group. Repartee can dazzle a room; banter makes a room feel at home.