Much like "jet
wash" (the rapidly moving gases expelled from a jet engine), "Belch
Wash" is the preferably vile and unpleasant gasses produced by a belch expelled in the proximity of another person who unknowingly and unavoidably walks through it, ingesting the odorous contents of the
belcher's stomach and expresses a negative reaction.
After a couple Scotch on the rocks at the bar, I enjoyed a fine halibut filet in garlic
cream sauce, steamed broccoli with jasmine
rice. Rich and delicious! While walking out of the restaurant I quietly expelled a
hot gaseous belch. My unsuspecting wife walking behind me passed right into my Belch Wash, almost yarped and exclaimed “Thanks, I just walked through your Belch Wash"