grip-and-grin

grip-and-grin (plural grip-and-grins)

1. (colloquial) An event at which one is expected to smile and shake hands for a photograph.
2. (colloquial) A photograph of people looking towards the camera and smiling while they shake hands, typically taken at such an event.
   • 2022 November 1, Polly Toynbee, “Rishi Sunak’s only been in office for a few days – and the errors are already piling up”, in The Guardian‎:

     Banning the king from Cop27 looks clumsy. News that Sunak could make a U-turn dash to Egypt having learned that Johnson may go looks panicky. If he only stays for a brief grip-and-grin, that too will offend.