So I have this friend who is a new student this year, and I convinced her that it would be fun to mess up Regina George's life.

11 seconds sound clip from the Mean Girls (2004) movie soundboard.

You can hear this line at 01:15:05 in the Blu-ray version of the movie.

Quote context

[...]

- They're okay. They're okay.

- Oh, boy. Okay, who's next? Who's next? Keep it going.

- Oh, my God. It's her dream come true, diving into a big pile of girls.

(GIRLS LAUGHING)

- Okay. Yeah, I've got an apology.

- So I have this friend who is a new student this year, and I convinced her that it would be fun to mess up Regina George's life.

- So I had her pretend to be friends with Regina, and then she would come to my house after and we would just laugh about all the dumb stuff Regina said.

- And we gave her these candy bar things that would make her gain weight, and we turned her best friends against her.

- And then... Oh, yeah, Cady. You know my friend Cady.

- She made out with Regina's boyfriend and then convinced him to break up with her.

[...]