Positive superlative form of cancerous. Formed from the combination of the words cancerous and terrific. This adjective is used to describe objects or events that are entertaining, yet potentially cancer inducing.
These glow-in-the-dark curtains are canceriffic.

I spend an hour in the presence of canceriffic go-kart fumes.
by Flocons De Mais April 19, 2005
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