JC is an acronym for "Just Chilling". Can be used as an adjective or a verb. Used in the verb sense, it means that you are just going along for the ride, or just hanging somewhere. In the adjective sense, it implies someone who is calm and collected all the time, and who never gets upset about anything.
Nick: I'm JCing at the club, want to come?
Harold: Derek is such a JC
by Prometheus Whist June 05, 2009
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abreviation for Junior Certificate, a state exam in the Republic of Ireland
I got an A in my JC in June
by john jacob jingle January 22, 2006
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Verb (from the noun Jennifer Chan):

1. The act of killing someone on a bottom bunk, caused by collapse of the bed from having bed-rocking sex on the top bunk, as in the case the original perpetrator, Jennifer Chan, or as seen on 1000 Ways to Die. This is the opposite of a dormgasm experience.

2. To kill someone in an equally gruesome (or humorous) manner, if not by the method described above, usually preceded by a threat with one's thumb pointed at the potential victim instead of the index finger.
Shela: Hey, what happened to Stephanie?
Vic: She got JC'd.

Winnie: Hey Jennifer look, chocolate! You know you want
some ;)
Jennifer: I'm gonna JC you! *points thumb*
by Vizzy1 April 03, 2011
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Best Cod player in the world ! .. average penis size is around 10" .. and about 6" wide. He is absolutely stunning and loves boobs. And he's the ultimate mix-master dj the world. He has slain many T-Rex', put down 500 lame sheep, lions tamed: 12, Virgins enlightened: Lost count. Grans Drop kicked, back hands handed out: Too many to count. Tea Drunk: 100tons worth. AMAZING IN BED.

wow i heard JC done in chuck norris last week
by Chuckle me stones. November 30, 2011
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The slang term for the toughest motha-fu*ker in existence. Biach is wicked-scary.
an also be used in reference to bling and the act of 'chillin' in one's hood or crib(yo).
"Yo JC, What-up ma brotha?"... "JC digs that bling...twinkle twinkle"
by Michelle March 09, 2005
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June Cleaver - Mother's Day short speak.
Can also refer to Joan Crawford (ala Mommie Dearest).
by T Wade May 07, 2005
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