Bill: He thr-thr-thr-thrusts his fi-fi-fists ag-ag-against the pos-posts and...
Ben: He thrusts his fists against the posts and still insists he sees the ghosts. That's all it says over and over.
Bill: Th-th-thats w-w-what m-m-my m-m-mom g-gave me t-to h-help with my st-st-stutter.
Richie: I hate to tell you buddy, it ain't working.
Pennywise: I'm every nightmare you've ever had. I'm your worst dream come true. I'm everything you ever were afraid of.
Eddie Kaspbrak: I believe in Santa Claus. I believe in the Easter Bunny. I believe in the Tooth Fairy. But I don't believe in you. This is battery acid. Now, you disappear!
Pennywise: [digging graves.] Take your pick, B-b-b-billy boy. Oh, except for the one on the end. That one's already taken. Sorry!
Richie Tozier: If I were you guys I wouldn't pay to see a monster movie, I'd just stay home and look in a mirror!
Beverly Marsh: Your hair is winter fire. January embers. My heart burns there too.
Chosen answer: It's their way of telling Richie to be quiet. To get him to stop talking.