it literally means "losing my temper" or "going insane" to some degree. If you would look at the REM lyrics to the song by the same name, it makes more sense, it really has nothing to do with religion.
I was pretty much losing my religion after being forced to listen to rap music by all the freshman girls at my school.
(Repeater Term) is a scientific term used to describe a spectrum of broad band noise generated in a receiver's detector and sampled to control the receiver's squelch. This term is often incorrectly used in repeater work to describe the sounds heard when the received transmission is noisy and hard to understand, usually attributed to a weak signal and the repeater receiver limiters are not engaged.
Many people do not understand the correct usage of 'white noise'