What is "backslaps"

Usage examples of "backslaps".

It was a moment for nervous, relieved laughter, for hugs and backslaps, for congratulating themselves that they had actually survived an amazing adventure, had not only survived but come out of it as heroes whose names would always be remembered in the world they had just left.

The backslaps and the fagsmoke, the lagers and the Scotch eggs, did not combine well.