I 'jammed' my finger in the car door. = My finger got 'jammed' in the car door. = I got my finger 'jammed' in the car door.
Thousands of people 'jammed' the hall. = The hall was 'jammed' [='jam-packed, packed'] with thousands of people.
All the telephone lines were 'jammed' with calls from angry customers.
(..) - You suck! - I need a ride. - Oh, really? Well, I ain't giving you shit, you old bitch! - Oh, my God, no! You can't borrow salad dressing! Or condiments! Or anything else you two want to jam up into each other's... I, uh- I forgot something. Oh. What? I forgot to tell you... I still love you. (..)2009 TvShow: It's Always Sunny in Philadelphia Title: The Waitress Is Getting Married Season: 5 Episode 5