Falspy 

Falsely happy. When someone pretends to be happy or projects a happy disposition, even though it’s not genuinely how they feel.

I'm tired of acting falspy at work all day just to put on a show for customers.

She has that big, fake smile in every single picture. That's not real. She must be falspy.

Falspy by Steviepthatsme May 5, 2018

Falsey 

A fictional character existing only in the minds of those who choose to believe in the Falsey. Mr. Falsey comes around any time when a person is proven wrong, does something stupid, or just makes an ass of themselves.

Usually referred to as 'Mr. Falsey'.

I was sure my processor was fried, but it turns out i just didn't have the power supply properly connected to the motherboard. Mr Falsey got me REAL GOOD!
Can also be used in sentences such as:
He'll getcha!
He'll getcha good!
He'll getcha REAL good!
Falsey's gonna getcha!
Gon' Gon' Gon' Gon' Gon' Getcha!

Falsey by Mr. Falsey March 9, 2005

Falspying 

To creep on, stalk, or spy on someone jokingly just to make them feel uncomfortable.

Jack was falspying on Jill during 2nd hour, making fun of the weird kid who always stared at her.

Falspying by N30NR34V3R May 6, 2010

Falsey pants 

Andrew Lindenberger

Wow, that guy is such a falsey pants. He needs to get himself a unicorn.

Falsey pants by Ebony Adara June 16, 2013

man made falsey 

When a man is having sex with a woman doggy style and proceeds to secretly take a crap. Then he sneakily pulls out and proceeds to do her with the log of poo until she hath cum.

I had tacos last night, so i had a very sloppy man made falsey!

man made falsey by DarinJ October 24, 2006

falsy 

Falsy is actually an important technical term in computer programming. A falsy value is one that will not cause an conditional block to activate.

#Python code

if {}:

print "This will not get printed, because {} (the empty dictionary) is falsy."

falsy by tigerthink January 23, 2010

falsprophety 

(fawls-pro'-fit-ee)
Adj.
1. Of or relating to a false prophet.

2. of or relating to a faith, religion, or its practitioners that is devoted to a false prophet.

"Those Mormons are so falsprophety"

falsprophety by yardlad May 23, 2010