Answer: nofair

AnswerCrossword Clue
NOFAIR"That's cheating!"
NOFAIR"But you said I could have a turn!"
NOFAIRKid's response to a cheater
NOFAIRThat's inequitable! in kidspeak
NOFAIR"You cheated!"
NOFAIR"That's against the rules!"
NOFAIRComplaint about equity
NOFAIRWhiner's phrase
NOFAIRRejoinder to unjust treatment.
NOFAIRCry of a poor sport
NOFAIR"Foul!"
NOFAIR"I was robbed!"
NOFAIR'Hey, that's cheating!'
NOFAIR"You're cheating!"
NOFAIRPouty cry