Muck Masking

While defecating and being overwhelmed by you're own vile ass gas you grab a can of air freshener (preferably an areosol can) and blast the toilet water between you're legs. Thus relieving you slightly and allowing you to breathe.

Tom: Man, that mexican food really gave me the shits!

Phil: Really?

Tom: Yeah it was so bad I was gaging and found myself muck masking to breathe!