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1.
Interjection used to express great astonishment, shock or similar feelings. Contraction of "christ sake". Similar to omigod
For chrissake, did Jack really do that?
Yup, straight up the A!
by MJ_M April 08, 2006
 
2.
A shorthand version of "for Christ's sake."
Chrissakes Katie, tuck your black thong back into your pants. Your mom is here.
by Jerry Pepper May 20, 2011