Mystery Guest

A person who nobody knows at a party, usually stands next to something, pretending to drink from the same bottle after it's empty.

Dude who's the Mystery Guest hanging out by the fridge?" "No idea, I thought you brought him?

by dmaulition July 15, 2011

mystery bae

that one secret admirer with a random phone number you don't recognize, texts you out of nowhere and starts flirting. Then you're intrigued and continue the conversation, but no matter what they never reveal their identity. Too bad they seem super cool

"hey sexy ;)"
"Who is this?"
"hehe I'm your mystery bae(:"

by predestiny May 14, 2015

urban mystery

When you search for a word meaning on Urban Dictionary and they don't know what it is either.

'I tried looking for the meaning of ____ or Urban Dictionary. But they didn't know either. It's an urban mystery!'

by Th3_P4nd4_H3r0 May 19, 2016

mystery poo

When you poo in a bag and hide it in someone's vicinity. After a while they smell it and have to find it.

Did someone mystery poo me? It smells in here!

by yfzrider2 October 26, 2013

Mystery moment

When Mystery posts a message that contains something funny and then quickly deletes it.

That was a Mystery moment

by anotlostman April 8, 2021

Mystery machine

Getting naked, turning out all of the lights so you cannot see anything, grab a random object, and shove it up,your ass or pussy

When doing the mystery machine, I accidentally grabbed a cactus and had the best night of my life

by Cumshot Larry June 4, 2016

mystery poop

After performing the act of dropping a deuce, refers to the absence of leftover feces about the buttocks. Therefore, leaving nothing behind to wipe. It's a mystery.

I love mystery poops, there's nothing to clean up after.

by Long-Dong Silver October 30, 2008