Top Definition
1) One who holds a lower standing in correctional facilities. 2) An unidentified substance found in correctional facilities where male to male coitus has occured.
1) That punk may be hot stuff on the outside, but in the joint, he's nothing but jailcorn!
2) I was washing Jimmy's sheets and stuck my hand in some kind of jailcorn.
by Dan Burr September 19, 2006
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