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killer clown 

A person dressed as a clown with murderous or harmful intent. Possible origins include serial killer John Wayne Gacy, who became known as the "killer clown" when he created a series of oil paintings on death row on the subject of clowns; or an incident in Boston in 1981 in which dozens of reports surfaced of children being abducted by people dressed like clowns.
"The Killer Clowns in your town raising all hell" -Tech N9ne/"Imma Tell"

Note: the 1981 Boston incident of clowns abducting children spread to Kansas City, Missouri, Tech N9ne's oft-referenced hometown.
killer clown by J-Mills2 November 13, 2007
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Killer clown 

Creepy teenagers who walk around dressed like clowns to scare everyone!!!
I was out with my bf and we were making out in public and a killer clown came up to us and said go hone now or I will follow you
Killer clown by Simply holly October 13, 2016

Killer Clown 

A clown associated to the horror genre. Fictional clowns that are created to scare and entertain. These clowns are not actually killers , they portray a horror character.
Can’t wait to see the killer clowns at the haunted house. They are my favorite characters.
Killer Clown by Dare2Sleep September 7, 2022

Killer Clown Tuesday 

“I was always afraid of Killer Clowns”, I said to myself, but luckily there were no killer clowns in sight. That was until I realized it was Killer Clown Tuesday.
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