Mystery Weed 

Mystery Weed: In desperation someone may smoke Mystery Weed, Weed that is smokable regardless of if it’s good, mid, or bad doesn’t even matter where it was found.

Man fuck it bro I’m about to smoke this Mystery Weed that’s been on my table for 5 months I gotta get high!

Mystery Weed by Xan Plan February 4, 2022

mystery shart 

Verb
When you can’t decide whether the fart is gonna be a shit or a fart.

Gary: Hey Luke, did you hear that Don got fired?
Luke: For what?
Gary: He got the mystery shart

mystery shart by broomstick handle March 16, 2022

Mystery Assignment 

When your teacher assigns an assignment on google classroom without a due date, so it doesn't appear on the homepage

Teacher: Did everyone do the assignment I posted yesterday?
Kid: What assignment?
Teacher: Click on our google classroom page
Kid: Oh, you assigned a Mystery Assignment!

Mystery Assignment by hi1923 October 17, 2022

Mystery WAP 

The genitals of an unfamiliar woman someone hooks up with.

Joe: Dude, so how was that mystery WAP?
Brady: It was great! My date was amazing and understanding! Tinder is great, man!

Mystery WAP by MerriamWebsterOfficial17 June 30, 2023

mystery box 

A collection of items, usually linked by brand or product type. They became popular since the 2010s.

Although they can be bought online, it is very easy to make a mystery box that contains items you have bought and sent it to someone.

My friend sent me a mystery box that contained Nike sneakers - Someone getting a mystery box of expensive shoes

mystery box by Ryan900USAYT August 27, 2023

Mystery liquid 

something you should never. EVER. drink. If you drink it, you will probably die.

guy 1: don't drink that mystery liquid!
guy 2: I wasn't gonna, retard.

Mystery liquid by SailorJazzy<3 September 20, 2023

Mystery honeypot 

A type of mystery that deliberately has no real answer.

Mostly used in horror for the purposes of making something that is meant to be incomprehensible to the readers.

"Just finished reading Asteroid 912-JST, I was disappointed that there wasn't an answer to what the asteroid was for in the end."

"Hey what if the asteroid was made to-"

"Nah, don't go through the trouble of thinking about it. It was confirmed by the writer that it is a mystery honeypot."

Mystery honeypot by nooneshouldnomyname January 3, 2024