Mack killer 

when someone kills your mack

man that tousif sure is a mack killer

Mack killer by j mog October 13, 2010

waifu killer 

1) A Waifu Killer is someone who cosplays your favorite character preferable female anime character and you don't like the person for cosplaying the character you like.

2) Someone you dislikes who cosplays a favorite character of yours and you really don't want to see them as said character.

1) Man, why did Antonio cosplay Hestia, what a waifu killer!

2) She had to cosplay three of my favorite characters, damn waifu killer!

waifu killer by Julia Lenna September 21, 2016

serial killer mustache 

A mustache from the 1970's to the 1980's.

My uncle had serial killer mustache, maybe that's why he went to jail.

serial killer mustache by plokimjunhybgtvfrcdefswzaq December 8, 2017

Dog Killer

Someone who likes to run over dogs and hurt them to make them shit on their car and slowly limp for the rest of their life

Your a Dog killer

Dog Killer by Tropica April 20, 2019

The Vampire Killer 

A great and powerful whip wielded by the ancestors of the Belmont clan, starting with Leon, to defeat Dracula a.k.a. Matthais Cronqvist. The whip was given to Leon Belmont by Rinaldo Gandalfi in its original form of the Whip of Alchemy. It became the Vampire Killer after a ritual where Leon's betrothed (fiancee) Sarah Trantoul willingly sacrificed herself to give the whip more... err... vampire killing power.

The whip was used to kill Dracula (repeatedly), succubi, vampires (duh!), a whole lot of other nasties and Death itself.

The vampire killer is the closest the Dark ages came to Dakka(shootiness not weed), excepting actual projectile things

The Vampire Killer by noeL <- October 31, 2011

The Zodiac Killer 

a man who killed zodiacs

The Zodiac Killer killed a lot of Zodiacs, that’s why he’s called The Zodiac Killer.

The Zodiac Killer by ButtholeEnthusiast October 11, 2021

Legend_Killer 

a person with his own fanclub at an online forum.

buttsecks

LK habs teh fanclub!1!!!1!!oneone

Legend_Killer by anonymous twc person March 7, 2004