by Medium "M" February 14, 2010
Someone who's had a bad day, and uses their negative emotions against you, or someone in a terrible mood who tries to make everyone feel the same way. All in all, they bring everyone down with their negative energy to bring themselves up. Similar to a party pooper.
Mary D. and Elizabeth got so drunk at the party last night, they woke up in a pile of vomit next to an old man. When they went to school, they dumped on everyone they saw. Everyone did not enjoy shit on their faces, so they called Mary D. and Elizabeth "the day killers."
by authOOr July 05, 2006
Yo homie come scoop up this killer deal right quick on this 55 inch flat screen! My homie just died and his mama needs cash for the burial
by killerdealz101yesdad December 31, 2016
A fan of the band The Killers, but doesnt tell anybody because he or she feels that they would be mocked listening to them.
i heard that Hardcore Jenny is afraid to tell everyone she loves The Killers music. She is so a Closet Killer.
by FSU Austin January 19, 2007
"oh shit that was a coochie killer ."
by stefany084 June 28, 2006
by Anonymous77777 November 30, 2007
by sarahlou June 13, 2007