Mendax 

A condition when someone knew the truth, but insisted to told the untruth statements.
Acknowledge the untruth.

A: Isaac Newton discovered gravity phenomenon when he was under a banana tree.
B: Of course, greetings from Binjai
C: Mendax!

Mendax by antimendax November 23, 2021

Frequenter Mendax 

From Latin Frequenter meaning "often/in-great-numbers" and Mendax meaning "false/deceptive". The phrase is used to describe things that have been proven wrong so many times that they are no longer worth debating or considering scientifically.

Person 1: "Why don't scientists fight more flat earthers?"
Person 2: "Because the flat earth theory is frequenter mendax; its not worth disproving what has been disproved over and over again."

Frequenter Mendax by hihi24522 May 24, 2023

Mendox 

A slang truncation of "mendokusai", the Japanese word for troublesome, used by English speakers in Japan.

I hate year end cleaning time here in Japan. It's mendox

Mendox by hafudan October 13, 2014

mendacious 

1. telling lies, esp. habitually; dishonest; lying; untruthful:
2. false or untrue:

a mendacious person
a mendacious report

mendacious by jake foster February 23, 2007

Menday 

A Valentine's Day type of holiday for men in September.

Lets go to the bar and get shit faced for Menday.

Menday by Anus Sangive April 2, 2008

mendacity 

absolute bullshit lies

ugly whoreface: omg I heard that mrs. applebottom had sex with a student
wonder highsky: smells like mendacity.

mendacity by pce_gangsturr December 7, 2006

mendatory 

"mendatory" is "a thing men must do because they are men". Like forced chivalry or something

It's mendatory that you be proud

mendatory by Syndaeris August 9, 2022