How I Met Your Mother S9E14 · Slapsgiving 3: Slappointment in Slapmarra

How I Met Your Mother

Season 9 · Episode 14 · Slapsgiving 3: Slappointment in Slapmarra · 23 min

In an attempt to deliver a devastating final slap to Barney, Marshall explains how he mastered the Slap of A Million Exploding Suns.