the heat is on

the heat is on

1. A situation has reached a point of great commotion, energy, or activity.

• “the heat is on”, in Cambridge English Dictionary, Cambridge, Cambridgeshire: Cambridge University Press, 1999–present.
• “the heat is on” (US) / “the heat is on” (UK) in Macmillan English Dictionary.
• “the heat is on”, in Collins English Dictionary.