glad-hand

Verb

glad-hand (third-person singular simple present glad-hands, present participle glad-handing, simple past and past participle glad-handed)

1. (transitive) To be overly friendly with (a stranger) in order to gain an advantage.
   • Not in many a moon had he glad-handed so many people. […] The President, in fact, behaved noticeably like a candidate for reelection.1948 February 9, “The Presidency: Getting Ready”, in Time, archived from the original on 01 Feb 2011
   • Whenever I wasn’t glad-handing NTOC [National Threat Operations Center] leadership at headquarters, I spent my time learning everything I could—“hot-desking” with analysts who worked different programs and different types of targets, so as to be able to teach my fellow team members back in Hawaii...2019 September 17, Edward Snowden, Permanent Record, New York, N.Y.: Metropolitan Books/Henry Holt and Company, →ISBN
2. To extend a glad hand (to someone); to welcome warmly.