FM Principal Mug
A term or phrase used to describe how a concept, idea, or equation operates. Heard most extensively from college students studying complex educational programs such as advanced mathematics or electro optics, the “F” stands for “F**king” and the “M” stands for “Magic”. The FM Principle can be used to describe: how a professor arrived at the answer to an equation, how a professor determined your grade for an assignment, or for instance, how to derive the transfer function of a 5th order chebyshev low pass filter. When a concept or idea seems beyond the scope of reason or is considered unfathomable, it is often referred to as the "FM Principle".
The Urban Dictionary Mug
Customer Reviews
my kids loved it. delicious and a great snack. would buy again.
it was great 💀
Gave it to my girl, she loved it.
Best mug I have ever had
love shoving it up my ass on a daily!!!!!
WOW THIS MUG MATCHES MY NAME I'M DEFINITELY GETTING THIS FOR MY BIRTHDAY
WOW I LOVE THIS SO MUCH IT EVEN MATCHES MY NAME! I'm definitely getting this mug for my birthday!
I got morb’d
This jar is amazing for vomiting in! i definitely recommend if you have ugly kids!
This cup is cool. I farted on it and my butt tickled
Perfect customized gift- super easy and quick to do and the order arrived in under a week!
Smaller than I expected for the price.
i use my mug for sperm donation
10/10, great for taking a massive shit in. Overflows if its more than 2 pounds, but its part of the fun, right?
Needed one to gift to my colleague in pests exptermination department, takes care of my bug pretty well. Damn well of a bugger, if I would, ol' chap. 😌
My nan bought this mug, took one sip and died on the spot. absolute joke.
it was day my mug had just arived i went to the door and grabed the box i closed the door AND BAM thge mug flew at me knockingme to the grouynd when on the ground the mug unzipped my pant a flew up my ass 10/10 loved it would buy
I love pooping in this mug, great experince. But if you do more than 1 pound as I do, search for a bigger one
i love men and cups so this cup was perfect for me
Amazing mug, really high quality, I love it!