mass dece

Massively decent. Can be substituted with "legit" or "awesome."

"Dude, did you see the game this weekend?"
"Yeah, man it was mass dece."

by brothelp May 16, 2014

Mass diddler

One who diddles at a mass level

Dude have you seen Larry? He hasn't been the same since the mass diddler struck.

by Therealmassdiddler October 6, 2016

mass diddler

One who diddles people's holes

Dude the real mass diddler totally diddled Doug a new hole. He hasn't been the same since.

by Therealmassdiddler October 6, 2016

Mass Hole

The most massive of all the Assholes, can also be the biggest Asshole of all Assholes you've ever known.

"My Ex sure is a Mass Hole"

by Aunt-Sass May 26, 2016

mass defect

When people are being stupid in a group. Collective retardation.

The teacher explained mass defect for the class by showing them a video of cheering Trump supporters.

Dr. Goldberg: Don't forget the mass defect in your equation Doctor Johnson.
Dr. Johnson: Oh, so m=13.267ev-#YOLO+#KillAllWhiteMen then?

by SimTeXa August 10, 2016

Mass party

Huge party typically full of teenagers and early 20 year old guys looking for a quick root. Best to go to these parties fully clothed unless you're looking at getting pregnant or paying child support for the rest of you life. Mass parties generally don't have honourable amounts of food just booze and weed. Best mass parties are hosted in halls and clubs with mean lighting set ups

Chad: " yo Harley did you hear there's a mass party on Saturday?!"

Harley: " yeah I did, ifts going to have all the bass drops and sickest lighting set ups, I heard there's going to be over 300 people!!"

by Freegan.Banana August 11, 2016

mass rez

Usually a edgy old man who try’s to be hip and cool but ends up making everyone in the room cringe, usually the old man wears eyeliner and dyes his hair black or gray and is part of some sort of cult

“My grandpa is such a mass rez”

by Spicyburritoman October 3, 2018