I. adjective
1. : characterized by a tendency to backslap
a jovial, hearty, backslapping type
2. : having an excessively hearty or boisterous character
the backslapping jocosity that passes for humor here — Sinclair Lewis
II. noun
( -s )
: the effusive display of approval, cordiality, or good-fellowship
there has been much satisfied backslapping over the presentation — Bosley Crowther
a field where social drinking and hearty backslapping had heretofore been prerequisites for success — Ralph de Toledano