HCI 

Highly Connected Individual. A member of the subset of geeks who spend significant amounts of time staying up to date on all the various Internet and cultural memes. These are the people who introduce their friends to the latest YouTube sensation.

"I thought you'd have seen that video already, being an HCI and all."

HCI by Seldo March 10, 2008

Hci 

Humberside collegiate Institute

A:Did you see that girls bio
B:ya,I guess she goes to hci

Hci by Follow me on Instagram September 10, 2018

Naloxone HCI 

Naloxone Hydrochloride (sold under the brand(s): Evzio® and Narcan®) is the antidote to a opioid overdose, it binds to opioid receptors in the brain to keep opioids from landing on the receptors.

ER Physician: Get me 0.2mg/mL Naloxone HCI intranasal

Naloxone HCI by Dr. Gage M.D. July 17, 2022

HCIG 

Hot Cheetos Induced Gastritis

Patient: My stomach pain started after eating all these Hot Cheetos
Doctor: You got HCIG my g

HCIG by HoodR1ch February 18, 2020

hcim 

An abbreviation used in Runescape. It stands for Hardcore Ironman. It's been used in a sentence like "I'm hcim btw" like vegans use the sentence "I'm a vegan".

I'm a HCIM btw.

hcim by Oldschool Runescape February 21, 2018

HCIH 

How Can I Help

"Oh shit, that's terrible. HCIH?" - Teri
"Check out HCIH.co!" - Geri

HCIH by CrigCrig July 3, 2020

HCIC 

Holy Crap It Compiles

An expression used, when programming, to express your surprise when a massive set of code successfully compiles after many hours of tedious work.

I just tightened up the graphics on level 3... HCIC!

HCIC by striblezz January 11, 2011