The cheesebar is the top bar across the top of a hockey net (usually refered to as a crossbar). If your a hockey player and you don't go cheesebar down then there really isn't a reason to score, you might as well of just stayed home. Cheesebar and in or nothing.
Going Cheesebar is also one of the three ways to score on pond hockey (or backyard rink hockey), or when the goalie is an asshole and doesn't show up, forcing people to go posts.
"Wow Yzerman just went cheesebar down on that sick goal."
"Jeff couldn't hit the cheesebar if his life depended on it. Way to be Jeff, just live the dream."
When someone slides a gnarly piece of school lunch cheese into another person's binder, and it winds up being a really big scandal for no reason and multiple people end up in lunch detention as a result.
"Hey bro, how did you guys end up getting lunch detention freshman year?"
"What, you didn't hear? It was Cheesegate, dude."
"What's Cheesegate?"
"Take a seat, my bro, I have a story to tell you..."
Pajama casual is a term used when working from home and preparing for a video conference. All business above the waist and your pajama pants down below.