Sanitarium?

No, it's not Sanitarium.
Hint: the Doctor in question is a claimed-to-be mad and expelled scientist.

OK, here's the dead giveaway, then...
The name is "Kurt".

Correct!

It's been some time since the last update so I'll give you guys a new quote. It's a one-liner from a game I played just recently and is easy to guess if you've ever played the game, it can be heard quite often during the gameplay.
"Kiss my shiny half-demon butt."

Going back to a favourite thread.
Game it's Painkiller Overdose.
What about "I live... AGAIN!!!" and don't tell me it's from a movie - it is famously repeated on a GOG videogame

Blood.
Now who knows "Hello, momma... you ever found a $20 bill underneath a stack of trash cans?"
Edited to fix 2 words.

An in case no one is responding because they are stumped, this is a GOG game.

It seems it's still too obscure... or no one who recoghizes that quote has checked this thread recently.

I'm gonna guess it's something like Simon the Sorcerer.
If that's not it then I have no idea

Easy one. The Redneck Rampage soundtrack

Correct!

Ok, the next one:
"Hey, do you lads mind helping me rescue Timmy, for I am just an old man, plus me balls are saggy.

That's one of Borjoyzee's lines from Giants: Citizen Kabuto, and I can find the cutscene to prove it.
Now mine:
Person A: "Soo.... How do those booyat and daguerach work on a gorgor?"
Person B: "Do not talk to me. I need to focus my essence."
If you played this game, all the made-up words will probably be familiar to you.