Constact 

A portmanteau word being a blend of "constant" and "contact". Coined during the Covid-19 pandemic of 2020, when many employees were suddenly forced to work remotely; yet retain instantaneous communication with their co-workers.

Despite me now being able to work in my underwear, I was forced to keep in constact with the office.

Constact by Office Skivvy April 14, 2020

Wadsworth Constant 

The Wadsworth Constant is the fundamental idea that the true meaning of a video, conversation, or comment approaches importance after approximately 30% of it has been skipped over.

The above definition, for instance, has 180 characters. After applying the Wadsworth Constant, we skip over 52 characters (29%). The definition now reads,
"the true meaning of a video, conversation, or comment approaches importance after approximately 30% of it has been skipped over."

Wadsworth Constant by ShigalHammoud October 2, 2011

Karpathy Constant 

The Karpathy constant is one of the best learning rates for the popular Adam (deep neural network) optimizer. It is defined as η = 3e-4. The actual symbol for the constant is α_k.

What is the correct learning rate for adam in this case?

Just use the Karpathy constant dude

Karpathy Constant by WonderingNeuron November 23, 2017

Jens's Constant 

The result when summing all the divisors of the numbers from 1 to 9. Seems to be a fundamental constant of nature, since it occurs many times on the Internet.

Youtube Poll:
69% yes
31% yesn't
Jens's Constant, nice ( ͡° ͜ʖ ͡°)

Jens's Constant by sevenfour March 2, 2021

Contact wait out 

"Contact, wait out" is a term military personel use over the radio to report enemy sightings/attacks. "Contact" means that the enemy has been identified or that you have already been attacked. "wait" means that you have no time to explain the situation right now. "out" means that you are about to end transmission and will call back later.

*Huge explosion*
Lieutenant: Holy shit, call it in!
Radio operator: This is Mike November 4, contact wait out!

Contact wait out by puje October 19, 2009

Bulgarian constant 

Basically anything which makes your result correct. (In Bulgaria they call this "coefficient of adjustment".)

your actual result × Bulgarian constant = expected result

Bulgarian constant by tomask July 7, 2021

penisary contact 

The act of making contact with the penis. Most likely revering to sexual intercourse.

First used by Tony Soprano in a session with Dr. Melfi.

Tony: So you're telling me it's possible that the two of dem never made uh penisary contact?

Dr. Melfi: I think your inquiring about something that I have no personal knowledge of.

penisary contact by Geoff Ross March 2, 2009