slap on the back
A gesture of congratulation, as in The coach gave him a slap on the back for coming in first. [Early 1800s]
11 Back To School Quotes To Kick-Start The YearYou learn so much more than just facts and figures in school. These quotes show the importance of education outside of studying and tests.
Does The Story Behind The Word “Hip-Hop” Go Back To The Nineteenth Century?Thirty-two years ago, Keith “Cowboy” Wiggins, who was a member of Grandmaster Flash and the Furious Five, was teasing a friend. The friend had just signed up to serve in the U.S. Army. Cowboy was mimicking the rhythm of marching soldiers by scat singing “hip hop hip hop.” He later used the phrase in a performance. Then the name began to be used by disco …
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
Examples from the Web for slap on the back
The garrulous or impertinent talker is almost as objectionable as the hail-fellow-well-met, slap-on-the-back fellow.The Book of Business Etiquette|Nella Henney