mayn't 

Rarely used contraction of the phrase "may not".

Student: Teacher, may I go to the bathroom.
Teacher: No, you mayn't. You should've went before the class started.

mayn't by some punk kid May 1, 2005

Mayn't 

Negative form of may+not

I mayn't go out with yo.

Mayn't by OuBiGiFrediCruga. April 24, 2019

Mayn't 

A mix of the may and not.

" May we come in?"
"... No..No you "mayn't"
Featured in the show Sam and Cat.

Mayn't by I ADORE DUCKS August 26, 2020

Mayn't 

A word used as a replacement to ( May not )

That mayn't be true

Mayn't by SunlightBlade November 22, 2020

Mayn't 

May Not (contraction form) (previously undiscovered)

You mayn't use my wallet to pay for that crap.

Mayn't by Danny Durden June 29, 2023

mayn't've 

(verb)
1. Contraction of may not have.

I mayn't've been involved with the party.

mayn't've by LDMbrooksBoroughyWordbook March 11, 2021

mayn's't'at'gh'we'th'j 

A verb that means to not may want to be at the mayness of the may wanting to be a may. it is a verb that only the classiest of classy persons may understand and so use. mayn's't'at'gh'we'th'j you be a classy person who is classy enough to be in use of classy words that in fact make no sense?

mayn's't'at'gh'we'th'j you be in possession of my laughing ass hairs? i mayn's't'at'gh'we'th'j left them in my other ass hairs?

mayn's't'at'gh'we'th'j by AssHairyAss May 25, 2018