Mystery swirl

The random spluge-stain you see under a UV light (generally on a motel bed).

Brendan: "We stayed at the cheapest motel; it had a mystery swirl on the bed!"

by afaraci12099 August 17, 2016

mystery booger

A booger that immediately vanishes upon blowing it out.

It is usually found by someone else hours later, stuck to some conspicuous place on your body.

"Hey, Jim! You've got a big snot on your shirt!"
"Damn that mystery booger!"

by Tater Bater May 8, 2020

Mystery Porno

When you're in a Zoom chat, and you hear a porno playing in the background, but you don't know who's watching it.

When you're watching a porno in a Zoom chat, and you try your best to convince the call that you aren't watching it.

Zoom User 1: What are those strange noises?

Zoom User 2: Mystery porno. these happen way too often.

by Based Cringe Based Based August 17, 2020

Mysterious circumstances

Murder/murdered.

My wife died due to mysterious circumstances.

by Ninjajonny_6 February 11, 2023

Mystery snack

When you go down on someone but you're completely concealed by the blanket, making the snack mysterious for both parties.

Me: I had a mystery snack with this girl i met at the snack bar yesterday.

Friend: How was it??

Me: Very mysterious.

by Benims bror August 18, 2019

Mystery Blow Hole

The act of having the anus surprise fisted whilst receiving fellatio.

She performed a Mystery Blow hole on her boyfriend.

by Yellowyoshi September 7, 2019

Mystery meat

A person so attractive and androgynous that you cannot tell if it's a boy or a girl or both or none

Josh : I have a date with Alex tomorrow

Max : dude that's just mystery meat
Josh : no problem you know I swing both ways

by Dizzy , devourer of worlds August 8, 2024