Fizzy Bum Gravy - A result of eating mystery dishes and strange foreign foodstuffs, or from inadvertently drinking the local
water on foreign land. The next
day, said concoction plays havoc with your intestines to the point that any loud noises or sudden movements
will make you shit yourself. The resultant explosion from your
arse sounds like the last of a washing up liquid bottle, emptying the entire contents of your bowel in 3 seconds. The by-product of this experience is known as FBG.
Oh, I can feel an FBG coming on!
Oh, I have a terrible
case of the FBGs.
My guts are in turmoil; this
next trip to the
shitter is definitely going to be an FBG event.