How I Met Your Mother: The Hardest Slapsgiving Quiz Ever

How I Met Your Mother
CBS

2. What Was The Website Marshall Made To Count Down Until The Next Slap?

Slapcountdownforbarney.com

Slapcountdown.com

Barneywillbeslapped.com
Contributor

Brian Uthar hasn't written a bio just yet, but if they had... it would appear here.