by Jhep January 30, 2018

Posting on instagram/tiktok because you're doing something envious, fun, or you're generally being a thirst trap will bring down the critical jealousy-forged hammer of a judgmental vibe killer who chastises you the minute you do it.
by LaSalle_Texas November 28, 2022

One who eats all their friend's cereral at his/her friends house and eats all the cereral at at Walmart without waiting to pay for it.
Person 1: Would you like a snack?
Cereal Killer: do you have cereal?
Person 1: yes...
Cereal Killer: (runs away)
(Comes back with all the cereral his/her friends have and eats it in under 5 minutes)
Cereal Killer: do you have cereal?
Person 1: yes...
Cereal Killer: (runs away)
(Comes back with all the cereral his/her friends have and eats it in under 5 minutes)
by MircroToasterWave May 29, 2019

An idiot that thinks he/her is better at a competition/game but is really just bad and gets defensive about it.
person 1- woah, you see that dude. he challenged us to a 1v1 and I barely lost any hp.
person 2- yeah he was a real killer-boss
person 2- yeah he was a real killer-boss
by Llamadabomb January 8, 2022

Someone who kills axes. They have many backstories, but here's one:
Belgg Axe-Killer
Height: 6'3"
Weight: 200lbs
Sex: Male
Bio:
Belgg Axe-Killer is a human-elf mix. He was always shunned by his peers and looked down upon for having mixed blood. After Belgg reached adulthood he joined the military hoping to earn everyone's respect, however he was kicked out for his aggressiveness towards axes. However when the Holy War came around, they called upon every person in the kingdom to take up arms, and Belgg once again joined the military. After much success he became one of Idroyn's best generals and earned the respect of his peers. At a party the king held, Belgg met the king's daughter Marya, and they fell in love. They got married and eventually they ruled over Idroyn. Together they had a son named Telphyt
Belgg Axe-Killer
Height: 6'3"
Weight: 200lbs
Sex: Male
Bio:
Belgg Axe-Killer is a human-elf mix. He was always shunned by his peers and looked down upon for having mixed blood. After Belgg reached adulthood he joined the military hoping to earn everyone's respect, however he was kicked out for his aggressiveness towards axes. However when the Holy War came around, they called upon every person in the kingdom to take up arms, and Belgg once again joined the military. After much success he became one of Idroyn's best generals and earned the respect of his peers. At a party the king held, Belgg met the king's daughter Marya, and they fell in love. They got married and eventually they ruled over Idroyn. Together they had a son named Telphyt
by Blegg Axe-Killer October 25, 2017

Best example of Forever. Like “Killer is Forever Bronze king” other term is “Killer is Forever Noob”
by Pakq May 31, 2018
