From Longman Dictionary of Contemporary Englishglad-handˌglad-ˈhand verb [intransitive, transitive] PERSUADEto talk to or welcome people in a very friendly way, especially when this is not sincere He moved among the guests, glad-handing well-wishers.→ See Verb table
Examples from the Corpus
glad-hand• Studio executives were busy glad-handing each other after the awards ceremony. 