Answer: didso

AnswerCrossword Clue
DIDSOArguer's retort
DIDSOPlayground retort
DIDSOPlayground comeback
DIDSOReply to a childish taunt
DIDSOSchoolyard retort
DIDSOKid's retort
DIDSOChildish retort
DIDSOChild's reply to a taunt
DIDSOKid's reply to a taunt
DIDSOSassy retort
DIDSOResponse to a schoolyard denial
DIDSOPossible response to "Huh-uh!"
DIDSOEmphatic affirmation