American, old-fashioned

something that you say in order to tell someone to stay calm and relaxed.

Hang loose, guys! The rest of us will be there to back you up.

• come down to
• come down to earth
• come down to earth with a bang
• That's all you need!
• That's a new one on me!
• that's another story
• that's it
• That's just not cricket!
• that's life
• That's more like it.
• That's my story and I'm sticking to it.
• that's news to
• That's news to me.
• that's news to you
• That's not cricket!
• That's one for the books.
• That's rich!
• That's someone all over!
• that's that
• that's the nature of the beast
• That's the story of my life.
• That's the way the cookie crumbles.
• That was a ... and a half!
• That was a game and a half!
• That was a [game/meal/walk etc.] and a half!