When an atheist follows his sack and pretends to be religious in order to penetrate a good Christian girl.
'Dude, I got sackreligious yesterday and devirginated this smoking hot Christian girl. I would have had absolutely no chance had she not thought that I loved Jesus....and had a knife.'
(Verb) Doing things of questionable moral nature, esp. those that go against religious teachings and/or documents. (e.g. drugs, sex, and rock and roll)
This has nothing to do with the occult or the worship of Satan.
"You going to Jess'sparty tonight? There's going to be lots of sacreligion going on."