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"
Beer pong stance in which the player squats in a runner's lunge position before launching the ping pong ball into the winning cup by way of a double knee bounce and wrist flick motion.
It is essential that this technique never be used against its creator, the original Belch-Nasty (Lauren Belcher). In this case, the offender will receive the penalty of three cups plus the loss of one article of clothing.
You weren't ready for that Belch-Nasty, now were you?!