Must'nt

A black magic spell used by people from Britain and by rich snobby bastards. The spell works by using it in a sentence to tell people not to do something. This spell is very dangerous. Every time it is used, all the planets in our solar system move 5 miles closer to the sun.

Guy who speaks normally: I'm gonna go fuck my sister.
Guy from London who uses said black magic spell: You must'nt commit incest. It is illegal.
Guy who speaks normally fucking died and the sun devours Mercury.

by Justin Beiber is Fucking Gay June 24, 2018

Mustn’t Milk Myself March

Just like in No Nut November, during March, you mustn’t milk yourself for the entire month of March.

Benjamin Dover “Hey, are you participating in Mustn’t Milk Myself March?

by Brady31 November 7, 2018

mustn't touchit

genitalia; male or female

You should name your headboard Chris brown because your wall had the shit beat out of it last night, how's your mustn't touchit this morning?

by nocockblockers July 20, 2009

mustn't've

Contraction of the words must, not, and have. An extension of the common contraction, mustn't. This is an extreme contraction. Please use it with caution.

I mustn't've have taken my car keys with me because I don't have my car keys with me.

by BryceM August 11, 2006

Mustn't Masturbate Merry Christmas

"Mustn't Masturbate Merry Christmas" is a challenge given to mostly men that revolves around that masturbating for all of Christmas Eve and Christmas day. Those who fail are forced to become elves, working in Santa's workshop for the rest of their lives. Those who pass, however, are given 30 minutes to do what they'd like with Mrs Claus, Santa's wife. Most, however, tend to pork her.

Person 1: Why have you been so down recently?
Person 2: I don't know. I just can't find the holiday spirit.
Person 1: Just participate in "Mustn't Masturbate Merry Christmas"!
Person 2: What's that?
Person 1: *shows them Urban Dictionary definition*
Person 2: Don't ever talk to me again.
Person 1: *commits suicide*

by Your Materfamilias December 23, 2018

Mustn’t Makeup May

A challenge akin to “No Nut November” except that in the challenge, girls must abstain from using any from of makeup for the entire month of May.

Abby:“Why aren’t you wearing makeup Jess?”
Jess:“Don’t you know! It’s Mustn’t Makeup May Abby!

by 69Ligma69 November 7, 2020

Mustn't Masturbate March

A sequel of sorts to the popular no nutting challenge "No Nut November". Often abbreviated "MMM"

"At the end of Mustn't Masturbate March, my balls are so heavy I can demolish buildings with them

by StarSoupMan March 28, 2024