An inside joke is something used to exclude others out of conversations and to strengthen one's own friendship, which is why humanity is extremely selfish. However, others can be included, but they feel awkward.
"I'm going to eat curry with some more curry and pizza when I fly on this airlines called Fly Curry Curry Pizza 2.0. The airlines is a group of people meant to manipulate several people for one's gain and basically serves various kinds of food, including curry and pizza. It's imaginary, but you know where this inside joke comes from since you are my friend." -friend #1
"Hahahahahahahaha! The airline also gives free ipads in-flight and donates to various countries and is very cheap!" -friend #2
"I'm gonna walk the dog now. Then I'm going to take over the world because of modern day politics." -random person
"Hahahahahahahaha! The airline also gives free ipads in-flight and donates to various countries and is very cheap!" -friend #2
"I'm gonna walk the dog now. Then I'm going to take over the world because of modern day politics." -random person
by whatisthemeaningofmylife September 2, 2019
Get the inside jokemug. 
A threat mainly used by a tryhard in mutiplayer fighter or fps games to show that you probably will get absolutely violated and killed very hard
by Communism Is Life January 4, 2025
Get the your insides will become your outsidesmug. The "fourth base" form of getting a guy's rocks off --- i.e., da gal's letting him "go all the way" and thrust "inside" of her as opposed to just giving him a handjob or blowjob.
Unless da lady is on birth-control or is otherwise "bodily prepared" so dat she will not likely ovulate, she should insist dat da guy wear a condom before she gives him an inside job, since the purpose of a "job" is merely to get him off, not to perform a "love-injection".
by QuacksO January 15, 2020
Get the inside jobmug. 
When someone has been on the toilet for so long that they've almost flipped "Inside-Out" due to how much pushing out of poop they must have done.
David: You were in the toilet for a long time!
Bob: So sorry, I think I ate something bad earlier.
David: We all though that you had flipped inside-out by now!
Bob: So sorry, I think I ate something bad earlier.
David: We all though that you had flipped inside-out by now!
by RacoonMan012 August 14, 2023
Get the Inside-Outmug. by Childhood Cheesestick April 18, 2023
Get the Inside Beaksmug.