"Ehn-Eee-Jay-Sea" - Acronym for "Not Even Joe Cool", an expression used by furries and e621 users when replying to commenters on an NSFW image of a character that they never would have imagined developing a sexual attraction for. Regardless over how bizarre of a character the commenter claims to get their rocks off to, the expression questions if they are still valid, confirming whether or not even they, in their wildest dreams, would have ever imagined getting the urge to fuck Joe Cool.
Commenter 1: Never in my life did I think I would want to fuck Snoopy.
Commenter 2: NEJC?