The flaky/powdering, yellowish substance mysteriously deposited around the mouth during sleep.
The origins of this word hark back to the invasion of the Norsemen (or vikings, to the uneducated).
Upon waking after a fruitful day of raping/pillaging Elder
Boff Grimm often found that a 'batter-
like' substance had been applied to the outer portion of his mouth by tiny, rotund fairies with pigtails and horned helmets during the
night.
Thus, Grimm named the substance after himself (
Boff) and in the absence of a true fact we can only assume the latter section of the word to be onomatopoeic, relating to the
sound made upon its discovery.
Gids: Were you orally badgered by Marv again last
night?
Crebs: No, i'm merely sporting some bofnaj following the 14 cans off Double
Dutch and Mississippi Squeeze Hog i indulged in whilst watching the 'Man o Man' Xmas special yesterday
evening.
Gids: I see.