That which is delightful in its unabashed irreverence, esp. with regard to religion. A portmanteau of "sacrilegious" and "delicious".
Guy: "Happy Easter"
Girl: "You mean Zombie Jesus Day!"
Guy: "Heh, that's sacrilicious!"
by sykopath79 April 10, 2007
So delicious as to be a slight against the tenants of the Christian religion, and/or the Chistian God, or Jesus.
Try some communion wafers with cheese & salami on Good Friday - it's sacrilicious.
by K-Swift December 15, 2009