When something is so cancerous, it seems borderline autistic.
You heard of Scientology? It's cancertism.

My teammates in League of Legends are cancertism.
by Caincer January 21, 2017
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A concert that gives all proceeds to cancer treatment or research charities or hospitals of any kind.
"Yo dude did you go to the Wicked Thirsty cancert?"
"Yeah, they gave all the money they made to Saint Jude's"
"Rad"
Rad"
by peril912 April 25, 2016
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A concert that gives you cancer
Hey, have you been to the One Direction cancert?
Yeah, it gave me brain cancer.
by Smuggler28 March 3, 2018
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