The door was stuck, but I 'gave it a jerk' [=pulled on it very hard and very quickly] and it opened.
He 'jerked' his head in the direction of the door and said, “Let's go.”
He said that they were just a bunch of 'knee-jerk' liberals.
(..) - She's got a stick up her butt. - Yeah. It's because she's been dating that douchebag, Steve Harrington. Yeah, she's turning into a real jerk. She's always been a real jerk. Nuh-uh, she used to be cool. Like that time she dressed up as an elf for our Elder tree campaign. Four years ago! (..)2016 TvShow: Stranger Things Title: Chapter One: The Vanishing of Will Byers Season: 1 Episode 1