The story behindHow I Met Your Mother’s most legendary line is even more awesome than you might think.

he confidently exclaims while Ted is on the phone with Marshall Eriksen (Jason Segel).

“Theyve really done nothing else since leavingHow I Met Your Mother.”

Classic TV Lines

Credit: CBS

catchphrase was established in the series premiere.

Adds Thomas: “Lets not s— on Fonzie here!”

What’s the best of the best?"

in this episode, which aired 15 years ago this month.

As for how he landed on the word “legendary?”

Then Miller decided to milk the joke even further when he saw the perfect opportunity just waiting for him.

“I just thought, ‘dary’ is sitting out there all alone on an island.

So I was like, ‘Here we go!'”

“What is this preoccupation with lactose, Chris?”

“This is a classy publication.”

But Thomas and Bays ultimately (and literally!)

“Its this labyrinth of a sentence.

That was our twist on it make it tortured right away.”

Adds Bays: “It really should have been the season 7 version of the sentence.”

“God bless Chris and Phil,” Thomas sighs.