head unit mystery

The phenomenon where the original head unit of a test car is unknown, as its head unit has already been swapped with an aftermarket one

I couldn't figure out why the sound quality was so amazing during the test drive—turns out it was just a head unit mystery with that aftermarket stereo!

by Emotional Cruiser October 12, 2025

Mystery shopper

Another word for a secret shopper.

I’m so excited about my new mystery shopper side gig!

As a mystery shopper, even your friends shouldn’t know what you do. It could blow your cover on a job

by Jozéy January 1, 2021

Mystery machine

The van that has a nice man who looks like Santa clause offering you candy

Santa: hey, look it’s the mystery machine, do you want to see Scooby-Doo

by Norville Rogers April 23, 2020

Mystery Taco

Mystery Taco: When a woman secretly inserts taco meat into her own vagina prior to sex, creating a delicious surprise for her partner, hopefully to be discovered during cunnilingus.

Mystery Taco: It's what's for dinner!

by Bob the Mighty August 2, 2011

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

by Ryan900USAYT August 27, 2023

mystery fluids

fluid that is unknown or unrecognizable, may be concerning towards one who discovers such a fluid.

dude, i just found some mystery fluids coming out of my hole.
thats concerning.

by iwantayoshie July 9, 2011

Bloxston Mystery

A totally calm and peaceful social deduction game

Samuel Goodman was eliminated last night. they were an enforcer

Town Cleo Davis: BROOO HOW TF DOES ENFORCER DIE N1??
Town Richard Parker: ENF GO BACK TO CASUAL
Dead Samuel Goodman: this is why i love bloxston mystery

by pseudonymsarentimportant December 3, 2023