(1) n. Extremely hard or nearly impossible to accomplish.
(2) n. A person who is able to do the impossible.

can also be used as a substitute for "hardcore"

Derived from Dr. Chen, a famous physics professor whose class was infamously difficult and frustrating.
(1) This assignment is chen-core, I am definitely going to fail.

(2) Jason finished all his work? He is truly chen-core.
by Sex Beatle October 04, 2004

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