olfactory "hallucinations" 

When you smell something that really isn't there.

I've had many olfactory "hallucinations" like when I smell mustard & there's none around!

olfactory "hallucinations" by Starchylde December 11, 2016

mass hallucination 

The only explanation for the Right’s perverse devotion to the Mobster in Chief.

In this ongoing mass hallucination, he is seen as someone who can make America great again; how crazy is that?

mass hallucination by Dr Bunnygirl March 27, 2019

Guitar Hero Hallucination 

1)The Feeling of the world "Zooming In" after playing any of the Guitar Hero Series Games for an extended amount of time.

2) Proof that Guitar Hero isw a Legal Drug

Guitar Hero Hallucination is an awesome feeling!

Guitar Hero Hallucination by Envy The Sin August 10, 2008

memoric hallucination 

A memory of something that never existed in the first place, also known as a "false memory", but fancier.

J: "Remember that one time I ate lead paint and then crawled on the ceiling?Hahah, that was funny, right?"

G: "N- ... No, that ... That never happened. You feeling alright?"

J: "Oh. I guess I had another memoric hallucination. It's fine. I'm fine. It's fine."

memoric hallucination by reticenthart April 5, 2022

AI hallucination 

When AI (like all of them) makes stuff up as if they were hallucinating.

Yep, the AI hallucination came on strong last night, now I'm *married* to Robin Williams.

AI hallucination by jmacofearth August 18, 2023

vibration hallucination

The feeling that your cell phone is vibrating in your pocket when, in reality, there was no vibration at all.

Man, I thought my phone was vibrating just now. I must have had a vibration hallucination.

vibration hallucination by tsalt February 12, 2009

Group hallucination 

When a large amount of people wrongfully thinks and/or believe they saw a certain event happen, even if this event has never occurred.
Similar to the Mandela effect.

*Group hallucination
A: Hey, did you see what happened yesterday on Pyrocynical's livestream?
B: No, what happened?
A: He had a mod that made the playable character big bootied!!!
B: Are you sure?
A: Yes...?

Group hallucination by NotPyrocynycal September 1, 2022