Proficide 

The act of killing mass amounts of people for profit

In avatar the humans go to war against the na'vi(the natives of Pandora) in order to mine a mineral to sell back to earth for unimaginable profit.

The blood diamond trade would also be a good example of proficide
The rubber trade under king Leopold in the congo
The colonization of North America

Any act that causes mass casualties in order to gain profit could be considered proficide. Any case of genocide where large scale profit was made and the race of those murdered would have been redundant.

Word conceived by Nathan Lacombe 2020

Proficide by Radrevo January 23, 2020

Pooicide 

When you accidently kill yourself when you are taking an extremely excruciating, painful, enduring, shit.

Some say Elvis died from a drug overdose. I beg to differ. He was on the toilet so he must have committed pooicide.

Pooicide by Gnezz10 March 30, 2010

proficiency 

A high degree or skill

I have a proficiency in painting

proficiency by Lougain Ismail November 2, 2017

proficient

Skilled, adept, competent.

He was very proficient in his task.

proficient by Larstait November 15, 2003

Porkicide 

Killer Sex

Last night I performed the ancient art of porkicide on my girlfriend and boy do I feel good.

Porkicide by bartyjoe from the land of sand September 24, 2009

Phonicide 

When a phone is tired of living as a phone or being owned by a human who it does not like, it kills itself, ala, breaking its own battery or making its human drop it.

One of the many reasons why phones do not last very long.

Tom: Dude, my phone just died on me. I only had it for a few months.

Martin: Did you check the battery?

Tom: Yes, it leaked out and fried the circuits.

Martin: It must have committed phonicide...it must have hated you...

Phonicide by Oltavulpes October 29, 2014

Promicide

The act of dumping your date just before prom. The break up must occur within 24 hours of prom in order to qualify as promicide.

Bob didn't tell his prom date, Alice, that he was going to show up without a suit. As soon as Alice saw him, promicide was inevitable.

Promicide by Freshyoungandandgerous June 18, 2011