Mysterista 

A Starbucks barista whose name you don't know.

Dude, that mysterista is smokin! I've gotta get her name...

Mysterista by Hjfreyer January 6, 2009

Mosterist 

as explained on www.Mosterist.com

A word that trumps ‘most’ and even ‘mostest’

mosterist
/mo-ster-ist/
determiner & pronoun
determiner: mosterist; pronoun: mosterist

greatest in amount or degree.

Chloe: "Love you"

Me: "Love you more"

Chloe: "Love you most"

Me: "Love you mosterist"

Chloe: "That's not a word"

well a quick internet search leads you to this page, which is proof that mosterist is a word when used by me and that also means:

Chloe I love you mosterist!

Mosterist by I Love You MOSTERIST Chloe August 16, 2017

mysterical 

when something is mystical and mysterious, it is mysterical

I was walking through the deserted forest, the atmosphere was quite mysterical

mysterical by 30h5 March 29, 2015

Mysterical 

Something that is both mysterious, yet hysterically funny all at the very same time.

Travis: We were wondering if you carried Mr. Pibb?
Lady: Um, no, i don't think so...
Travis: (laughing) Its turning out to be very hard to find, we thought you might carry it...darn...
Lady: Yes, locating it can be quite mysterical...
Travis: Right...wait is that even a word...

(it is now)

Mysterical by Carson Spence December 1, 2007

Mysterically 

Mysterically is a word that has yet to be defined by the english dictionary but is used in many culture's vocabulary to include: Germany, France, Pakistan, Iraq, and even Iran. It is meant to show that something has happened that there is no real reasoning for.

My backpacks mysterically disappear from my room when my friends are there.

Mysterically by BigDawg78 March 16, 2011

Mosterist 

A word that trumps 'most' and often times even 'mostest'.

I love you the mosterist.

Mosterist by Serena bityercockoffe January 26, 2009

Mysteria 

Noun.

A combination between mystery and hysteria, such as when people are hysterically interested in a mystery.

Adjectival form is mysterias

1. I was full of mysteria when my boyfriend wouldn't tell me what he had written in his notebook.

Mysteria by malathia February 2, 2006