Bukkake goggles are very large sunglasses, often (but not necessarily) round in shape, that tend to cover much of the wearers face.
BG's can be rated on a scale from 7 to 10, with 10 being extreme facial coverage. The larger the glasses, the more area to bukkake all over.
the feeling you get when you get scared/paranoid about something
"what the fuck is the BG's?"
"it means i got the bubble guts"
"sounds like butterflies to me"