How I Met Your Mother Season 9 Episode 14
Overview
In an attempt to deliver a devastating final slap to Barney, Marshall explains how he mastered the Slap of A Million Exploding Suns.
Guest Star: April Bowlby, Cristin Milioti, Eva Amurri Martino, eva-amurri, Joe Nieves, Katie Walder, Nathan Morris, Nazanin Boniadi, Shawn Stockman, Stacy Keibler, Wanya Morris
Episode Title: Slapsgiving 3: Slappointment in Slapmarra
Duration: 22min
Air Date: 2014-01-13
Year: 2014
IMDb: