Mondays 8:00 PM on CBS
Prime_large
How-i-met-your-mother
Like Us On Facebook
Looking to watch How I Met Your Mother Season 4 Episode 21 online? TV Fanatic is your destination for every paid and free streaming option of the How I Met Your Mother S4E21 full episode from 2 affiliates.

Rating: 5.0 / 5.0 (4 Votes)

Episode Details

How I Met Your Mother Season 4 Episode 21: "The Three Days Rule"

When Ted violates the three day rule by texting a girl he just met, Barney and Marshall pretend to be the girl to mess with him.

Want more How I Met Your Mother?

Sign up for our daily newsletter and receive the latest tv news delivered to your inbox for free!

How I Met Your Mother Season 4 Episode 21 Quotes

Barney: You can't call her, you have to wait three days to call a woman. That's the rule!
Ted: Barney, that rule is completely played out. Girls know exactly what you're doing. Hey I got a new rule, it's kind of crazy, it's called you like her, you call her
Barney: I'm sorry, can you repeat that? I don't speak "I never get laid"

Barney: Nice! Girls whose names end in LY are always dirty: Holly, Kelly, Karly... Lily.
Marshall: Hey! Oh, yeah, I know it's true

x Close Ad