quick-witted comeback

Translations
остроумный ответ
Her quick-witted comeback left everyone in stitches.
Ее остроумный ответ рассмешил всех до слез.
Definitions
A quick-witted comeback is a clever, humorous, or sharp response given immediately in conversation, often as a retort to a comment or insult.
Words
quickwitted

adjective
остроумный
comeback

noun
ответная реплика