It features in all the Fallout games.

I’ll have two number 9s, a number 9 large, a number 6 with extra dip, a number 7, two number 45s, one with cheese, and a large soda.

Technically, all of OP's criteria match my answer!

Also: "My vision is augmented."

And: "A bomb's a bad choice for close range combat."

Finally: "And J.C.? Stay out of the women's bathroom..."

Would you kindly...

Every line of dialogue from the g-man goes hard as hell. The VA did incredible work making it sound so eerie and not of this world

Yup great VA and brilliant editing that makes it sound just inhuman enough

I would go with:

"This is a triumph"

La-li-lu-le-lo

The zig moved for great justice.

"Trust me."

😭

Not true, never finished it and still know its san andreas.

Like right in the beginning too

Say goodbye to her for me.

The original question didn't specifically ask for phrases that ONLY those who finished would recognize :)

It's not a lake, it's an ocean.

“Hey Listen!”

[link screaming internally]

damn......

I'm making a note here

gel layer could have taken most of the impact

All the gravemind lines are absolute bangers.

Fate had us meet as foes, but this ring will make us brothers

Pick a god and pray

"Side with Maelle"

"It's time to punch a mountain... INTO SPAAAAAACE!"

(though uh... I can't remember if that was in a normal ending or the hidden one; I certainly remember the line tho lol)

Kill him, and your initiation into the Dark Brotherhood will be complete.

Someone set us up the bomb!

Shoot John Romero's severed head hidden inside to send it back to Hell.

Just coffee...

"A hunter must hunt."

Keep on keepin' on

"I am the very model of a scientist Salarian..."

He also speaks entirely in iambic heptameter, which makes every line sound extra poetic.

More a meme than a phrase, but "press X to Jason".

I used to be an adventurer until I took an arrow to the knee

gl hf dd

I say this to every porter.

I test this on gamer nerds to see if they're cool. If they smirk, I know I have a friend for life.

Your spoilers isn't working correctly.

I yell this when I rush restaurants

What can change the nature of a man?

“You’ve lost it completely, Krauser!”

You're pretty good.

I really wish I could forget everything about this game so I could experience it again for the first time.

Man, now I'm bummed. Mordin is the goat

Glory to Arstotzka!

"Nanomachines, son."

You will know "The cake is a lie" like halfway into the game, when you first find the open wall panels and look in the little hidey-hole. You don't even have to come close to beating it.

"Rogan?" - "Wololo"

Don't have to finish the game. Don't even have to start playing the game. This is said at the beginning of the intro, it might be the very first thing spoken in the entire game.