Dayfusion

Noun - The occurrence when you have stayed up late enough at night that you not only forget what day it is, but also think that what you did mere hours ago actually happened the day before.

Tom: "Hey, Katie said you messaged her three times tonight, I think you should take the hint, dude."
Bill: "Oh, crap. I forgot I already had! Bad case of dayfusion, man."
Tom: "Maybe you shouldn't stay up so late?"

Dayfusion by Roberto' August 7, 2012

Dayfusion

Getting the days of the week mixed up.

Woke up with dayfusion, thought it was Friday but it's only Wednesday.

Dayfusion by Nicowlala April 14, 2017

Cultural Diffusion 

The spreading of a cultural trait (eg, material object, idea,or behavior pattern) from one society to another

Cultural diffusion has resulted in our children enjoying a more enhanced holiday season due to additional traditions and celebrations shared with them by those of other cultures.

Cultural Diffusion by Katmandu September 4, 2003

Diffusion 

The movement of molecules from an area of high concentration to an area of low concentration.

Osmosis is the diffusion of water.

Diffusion by randomword12 December 9, 2008

Cultural Diffusion 

cultural diffusion menas the ideas and things in one culture "borrowed" by another culture

Americans borrowed the granny smith apple from Australia

Cultural Diffusion by Beatriz November 12, 2003

Elevator Diffusion 

The phenomenon in which people evenly distribute themselves in an elevator, especially after people get on or off said elevator.

Failure to do so will result in very awkward situations.

John: The elevator's stopped, time for elevator diffusion!

Kate: Why is this random standing right next to me?
John: Hey buddy! Follow elevator diffusion!
Random: Sorry, man

Elevator Diffusion by relativity13 April 5, 2011

nuclear anal diffusion 

(n.). The feeling you get when you see a feminist think there's more than two genders.

Oh god this nuclear anal diffusion is back; who the fuck is the feminist

nuclear anal diffusion by ScreechingAnalNiggerWhipper June 5, 2017