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Anal Cranial Inversion: One's head lodged firmly up into their rectum.
Don't ask for her advice, she's got ACI
ACI by 12kcolg November 2, 2008
Related Words
Anus Cleaning Incident

An incident during showering when one cleans his/her anus and water penetrates the asshole accidentally.
Mike: Dude, I had the worse ACI today. Almost pooped in the shower.
Rob: You should have used a low flow shower head to clean your ass.
ACI by innoslang September 3, 2014
Today i copped an aci
Aci by Churroreal November 23, 2021
Best Agar.io clan right now!
ACI is best clan
ACI by anonymous February 15, 2022

Ven Aci Ahora 

This one sentence is every hispanic kids nightmare. You know you about to get the absolute shit out of you.
Mom:Juan Carlos Ven Aci Ahora
Friend: oooooooh you in trouble.
You: See you in heaven my amigo.

the aci effect 

When a youtuber joins a discord chat and everybody .fights eachother to join too
Person 1: yo, *famous youtube name* just joined the chat
Person 2: Oh No! The Aci effect will happen!
*Lots of cringy peeps trying to join the chat*
the aci effect by minedor May 24, 2017
More from Urban Dictionary

fauxstalgia 

Faux nostalgia. Faking old things in an attempt to recapture the feeling of times gone past, especially of technology that has passed.
Hipstamatic pictures, just like the vinyl-static added to digital recordings, is prime fauxstalgia
fauxstalgia by scotte61 December 16, 2010
Word of the Day on October 15, 2026

pajama casual 

Pajama casual is a term used when working from home and preparing for a video conference. All business above the waist and your pajama pants down below.
We have a Zoom meeting in a few minutes and I’ll probably go pajama casual.
pajama casual by jrod-knows March 31, 2020
Word of the Day on October 14, 2026
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