Cog wheel.

The line of succession stops at that station.

Go big or go home.

On the defensive.

Looks like unnecessary roughness.

Seems pretty offensive.

Fit as a fiddle.

He is fit to be tied.

Or to throw a fit.

To sell a fat pig.

The lure of the sale is illusion.

Once hooked, it is too late.

At a glance.

Yet another form of side eye.

Looking askance would serve well in reply.

Post or perish.

They should definitely switch to Facteime.

Much more satisfying than face-to-face.

The Tower of Babel.

He can confuse him in many languages.

It helps when you want to secretly insult someone.