Popsugar Entertainment How I Met Your Mother How I Met Your Mother Past References in the Series Finale Did You Catch All These Inside Jokes in the HIMYM Finale? April 2, 2014 by Shannon Vestal Robson View On One Page Photo 2 of 15 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 2 The Infinity High Five Barney — and the gang as a whole — love their high fives, so Ted and Barney's goodbye is appropriate and over the top: the infinity high five! Previous Next Start Slideshow How I Met Your MotherTV