When a small group of people make up a joke (a phrase) while no one else is there (Sometimes because of an event that occurs, and then someone says something and it becomes an inside joke) and don't tell anyone about it, so every time anyone (whether from the group or not) says the phrase, they all start laughing like idiots for an unknown reason. It completely baffles people outside this group why it would be remotely funny. Most of the time it confuses them, or annoys the crap out of them.
Jeff started cracking up for no reason when I said "jelly"
Like wtf? Is that an inside joke?
Person 1: So I spread mayonnaise on my turkey the other day...
Person 2: Ahaahaahahahah!!! MAYONNAISE!!!!
Person 1: Wha-
Person 3: DID HE JUST SAY MAYONNAISE??!! AHAAHHAHAHAHAH
Person 1: Um??
Person 1: I checked out books from the library for my little brother, he seems to like The Very Hungry Caterpillar
Person 2: HAAHHJHSHJAHJDJHGGJDG HAHAAHHAHAHHA S SHAHAHAHAHAHHA
Person 3: *wheeze*
Person 1: .....
Person 1 walks away
Like wtf? Is that an inside joke?
Person 1: So I spread mayonnaise on my turkey the other day...
Person 2: Ahaahaahahahah!!! MAYONNAISE!!!!
Person 1: Wha-
Person 3: DID HE JUST SAY MAYONNAISE??!! AHAAHHAHAHAHAH
Person 1: Um??
Person 1: I checked out books from the library for my little brother, he seems to like The Very Hungry Caterpillar
Person 2: HAAHHJHSHJAHJDJHGGJDG HAHAAHHAHAHHA S SHAHAHAHAHAHHA
Person 3: *wheeze*
Person 1: .....
Person 1 walks away
by Uncreative Blob February 7, 2018

When a person talks about a topic a little to much but denies liking the thing they are talking about, thus creating a paradox as it is unknown whether they actually mean what they say.
"Jake talks about liking that one girl a little too much but says he doesn't like her. I think its an "I'm Joking" Paradox"
"
"
by Scoria May 26, 2023

*orders a 12” inch subway and when it arrives it’s 10”*
Liam: you’ve got to be jimmy joking me, this is taking the piss
Liam: you’ve got to be jimmy joking me, this is taking the piss
by dickheadan May 6, 2018

A reality joke is a joke told, but the joke turns out to be reality, or a real situation. This can be unintentional, as in someone has no idea the joke is about something real. But it is often intentional, where someone knows the situation is real, and makes the joke to make fun of someone or something. So a reality joke gift would be a gag gift or a joke type gift. The gift is given either to be funny, as in the gift giver has no idea the joke is reality; or the gift can be given to make fun of someone, as in the gift giver knows the joke is reality or based in reality.
I, Ted Rimmel Jr have been on the receiving end of a reality joke gift. This was before it was known that I was involved in a secret love affair with my mother. But accurate rumors and gossip began to spread about it. Anyhow, it was my birthday party. At the party were a large group of my friends, my sister, and my mom (all adults). I proceeded to open gifts. One gift was women's sexy lingerie, nylon stockings, a pair of high heels. Next gift was a carton of condoms (12 dozen). Next was an envelope containing a letter stating that Mom and I had use of a friend's cabin for two weeks.My friends explained "The lingerie, nylons, heels is for your mother. The condoms are for you. The cabin is for both of you to spend two weeks alone together. In the cabin your mom wears the lingerie, nylons, heels, you wear the condoms, then you get your true birthday gift. Happy Birthday Ted!! An absolute reality joke gift.
I, Ted Rimmel Jr have been on the receiving end of a reality joke gift. This was before it was known that I was involved in a secret love affair with my mother. But accurate rumors and gossip began to spread about it. Anyhow, it was my birthday party. At the party were a large group of my friends, my sister, and my mom (all adults). I proceeded to open gifts. One gift was women's sexy lingerie, nylon stockings, a pair of high heels. Next gift was a carton of condoms (12 dozen). Next was an envelope containing a letter stating that Mom and I had use of a friend's cabin for two weeks.My friends explained "The lingerie, nylons, heels is for your mother. The condoms are for you. The cabin is for both of you to spend two weeks alone together. In the cabin your mom wears the lingerie, nylons, heels, you wear the condoms, then you get your true birthday gift. Happy Birthday Ted!! An absolute reality joke gift.
Chad: "Ted received a reality joke gift during his birthday party. He received lingerie, stockings, high heels for his mother to wear. He received a carton of condoms for him to use. His mother and him received a two week stay in the cabin, so he could get his real happy birthday present, hahaha."
Alexis: "Oh I get it, a joke gift, but definitely based on reality. A reality joke gift."
Alexis: "Oh I get it, a joke gift, but definitely based on reality. A reality joke gift."
by Ted Rimmel Jr December 4, 2024

You simply missed the joke. This is a bad thing on the social media. Avoiding this mistake is recommended.
Typer 1: Wow that’s not funny. I did not laugh!
Typer 2: But it’s a meme it’s supposed to be funny.
Typer 3: You missed the joke.
Typer 2: But it’s a meme it’s supposed to be funny.
Typer 3: You missed the joke.
by Idk just someone January 18, 2023

An inside joke is a joke that only a few people understand because it was based off an incident or something another person said.
by hiiiiiiooo111 October 26, 2019

by firehutch September 30, 2020
