Rock in roll
- that roll has to do the movement of the dance that goes with the music.
- it is used often to "disparage" the fact that many people of some denominations express their fervor by shouts and body/arms movements, etc. Thus, holy
has to do with "religion" and rollers
with the participants of the songs of praise in said denominations and their way of praising/singing
And in a way it could be what Marcelo pointed out, or the guy even could have meant that "he had not time to religion (in such ostensive ways)" or wasn´t interested in going to a given church he had just been offered/asked to, etc etc. Or that he isn´t on the same page as those guys, that is, he don´t agree with them. A number of possibilities...