The fingering of a patients anus to assess for rectal muscle tone in a trauma patient. Often used excessively.
by Bright_Barty May 10, 2022

Kevin and mark got bored at work, so they got a handful of grease and gave each other the ol' Hot mill handshake
by Copco July 6, 2016

Person #1 - Yo, is Mark still a savage?
Person #2 - Nah, he's on that new mackin handshake because he has a girlfriend now.
Person #1 - Goodnight, sweet prince :(
Person #2 - Nah, he's on that new mackin handshake because he has a girlfriend now.
Person #1 - Goodnight, sweet prince :(
by M.Boy December 14, 2016

A term for an agreement that was never meant to be honored. Stands in opposition to deals sealed with shaking right hands.
Person 1: I thought we had an understanding!!
Person 2: No man, that was only a left handed handshake.
Person 2: No man, that was only a left handed handshake.
by bakja November 16, 2011

by Fuckme456 May 15, 2019

A manual anal stimulation technique whereby the gentleman inserts four fingers, pinky at bottom... index on top, into the ladies rectum. The move is fully executed when the thumb has been inserted into the vagina and the man's hand is shook vertically as if introducing himself to the lady. A quick way to remember this technique is "four in the stink, thumb in her pink."
My new neighbor introduced me to his wife so to be polite I gave her a Long Island Handshake.
-or-
Nothing relaxes Suzy more after a long day at the office, than a nice glass of wine and a Long Island Handshake from her boyfriend.
-or-
Nothing relaxes Suzy more after a long day at the office, than a nice glass of wine and a Long Island Handshake from her boyfriend.
by sonny chiba December 26, 2006

by Laroonmochyointerinet May 7, 2018
