Answer: IDOTOO

AnswerCrossword Clue
IDOTOOAffirming retort
IDOTOOPlayground response
IDOTOO"You don't!" rejoinder
IDOTOOPlayground retort
IDOTOO"You're not alone in that"
IDOTOO"Me as well!"
IDOTOO"Same goes for me"
IDOTOOPhrase of agreement
IDOTOOConcurring words
IDOTOOCopycat comment
IDOTOO"Same here!"
IDOTOO"Ditto!"
IDOTOOWords of agreement
IDOTOO"Same with me!"
IDOTOO"Same here"
IDOTOO"Ditto"
IDOTOOWords of concurrence
IDOTOO"Likewise"
IDOTOOAgreeing words
IDOTOOResponse to "No you don't!"