‘How I Met Your Mother’ Season 9, Episode 14 Live Stream: Watch Online Free Tonight, Marshall Gives Barney Final Slap In Slapsgiving 3!

"How I Met Your Mother" season 9, episode 14 airs tonight - find out where to watch online a free live stream of "How I Met Your Mother" season 9, episode 14, titled "Slapsgiving 3: Slappointment in Slapmarra." Looks like Marshall will give Barney the final slap in their slap bet!

If you can't make it to a TV by 8pm EST tonight to catch "How I Met Your Mother" season 9, episode 14, click here to watch "Slapsgiving 3" online via a free live stream.

If that doesn't work, CBS also offers episodes on their website to watch online the morning after an episode airs.

The official synopsis of "How I Met Your Mother" season 9, episode 14, as reported by the Latino Post, reads: "In an attempt to deliver a devastating final slap to Barney, Marshall explains how he mastered the Slap of A Million Exploding Suns."

"How I Met Your Mother" series creators and executive producers, Carter Bays and Craig Thomas, revealed that the episode will occur entirely during a super slow-motion slap, with a musical guest making an appearance in the episode, IB Times reports.

As we previously reported, TV Line noted that Jason Segel, who plays Marshall on "HIMYM" gave this spoiler about the final slap bet episode: "I'll just say two words, and you can take them any way you want: Hillary. Clinton."

The promo trailer for "Slapsgiving 3" features a funny snippet between Marshall, Barney, and Robin. Marshall and Barney are standing face-to-face.

"I love you," Robin says to Barney.

"Enough to take this slap for me?" he asks.

"No," she replies, and steps away from Marshall and Barney.

"How I Met Your Mother" season 9, episode 14, "Slapsgiving 3: Slappointment in Slapmarra," airs tonight, January 13, at 8 p.m. EST on CBS.