English ⇄ Russian

dial it back stresses
gen.	отыграть назад (yurbel)
amer.	полегче (братан, чувак, подруга Taras)
inf.	сбавить обороты (A teenage girl might ask her friend to dial it back if she's acting silly in front of a boy the girl likes. A guy might tell his brother to dial it back if it seems like his brother's going to get into a fight with someone. assaria)
dial it back!
Игорь Миг	явный перебор; перебор!