gnash

In the face of terror, you need to sway and smile to take a break from the weeping and the gnashing of teeth that’s the rest of the day.

Calum Miller of the Liberal Democrats says he knows of businesses "gnashing their teeth in frustration that they just can't exploit opportunities to work with and trade with Europe".

Or Disney’s “Frozen,” from 2013, where wolves gnash as they pursue the heroine.

Rending of hair and gnashing of teeth may be picking up speed behind the scenes in what’s left of the Republican Party — but right now that anguish has no outlet.

Weed heads began gnashing their teeth and rending their garments.