an act or instance of offering praise or congratulation: The winners indulged in a certain amount of mutual back-patting.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for back-patting
Historical Examples of back-patting
And in all this outpouring of sentiment, this hand-shaking and back-patting, nobody thought to offer a kind word to old Waddles.Fore!
Charles Emmett Van Loan