Columbine 

To lose sanity and go on a rampage (shooting or otherwise) on people (guilty and innocent alike) in a larger group after the larger group has caused you stress, pain, and discomfort that leads to your loss of sanity. See also wordpostalword

The constant bullying of the preppies and jocks have caused him to pick up his AK-47 and go Columbine on everyone.

Columbine by KinFreon May 19, 2003

Columbused 

This is the exact moment in time that you realize that someone , obviously not the first, is telling you that they were indeed the first to do , invent , solve or to discover something.

I’ve just been Columbused !

Columbused by MCK II October 27, 2019

Columbine High School Massacre

The Columbine High School massacre was a school shooting that occurred on April 20, 1999, at Columbine High School in Columbine, an unincorporated area of Jefferson County, Colorado, U.S. (Wikipedia)

Date: April 20, 1999
Location: Columbine High School, Colorado, United States
Total number of deaths: 15 (including both perpetrators)
Shooters: Dylan Klebold, Eric Harris
Perpetrators: Eric Harris, Dylan Klebold
Weapons: TEC-9, Hi-Point Carbine, Knife

Columbine High School Massacre was a Devastating Event, taking away 15 lives, including those of the perpetrators. It was found, nonetheless, that the perpetrators, Dylan Kebold and Eric Harris, were depressed and constantly bullied at school.

Columbine High School Massacre by The Canadian Textbook February 24, 2018

Columbine Font 

On any instant messenger, bright green font with a black background. Usually Comic Sans, size 12, bold. The font of repressed murderers everywhere.

Jason uses Columbine Font. He's a creep

Columbine Font by Frathouse September 23, 2009

Columbine 

Where some of my best friends died.

April 20, 1999 at Columbine was the worst day of my life

Columbine by Stephanie. December 28, 2005

COLUMBINE MUSIC 

A type of music that was thought to have made the kids at Columbine want to kill people.

Most of the C.D.s he recieved for his birthday were of Columbine Music.

COLUMBINE MUSIC by Anonymous August 12, 2003

Columbine 

School in Littleton, Colorado where Eric Harris and Dylan Klebold shot 16 people, including themselves, on April 20, 1999.

Shut up, Daniel Peck. It's because of assholes like you that they felt that the world and almost everyone in it sucked, and they decided to take matters into their own hands.

Columbine by asfsdfsdfstetertwertrewyeru June 26, 2004