The word "Bouche" (pronounced like "Boosh") means "mouth" but it also sounds like the name of Bush. The last line seems to indicate that Nostradamus is speaking about the the fate of a particular individual - a person whose face has been anointed with milk and honey - typically indicating a man who is a king or highly placed official, who is lying dead or injured on the ground.

"Trombe" literally means waterspout, which is a tornado on a water. It is possible that this quatrain is describing two notable events - the occurrence of a huge and destructive tornado and the assassination or attempted assassination of a leader taking place in close proximity of time.  If not taken literally, the first two lines might indicate something like an explosion of a bomb where the smoke spreads like a waterspout. The word "grand discord" meaning great sound, fits well in both contexts. An explosion or a tornado, it would obviously tremble and its consequence would disturb harmony in the world, as the second line seems to suggest. "Lifting its head to sky" goes with the "waterspout" and could indicate the rising smoke and fireball of an explosion or the tornado.

What is almost certain is that Nostradamus speaks of a highly placed person lying dead or injured on the ground in a pool of blood. The hint is that he is dead, may be from a bomb explosion. But could the word "Bouche" actually mean a similar sounding name "Bush" instead of its actual meaning? The line can be interpreted as "Mouth blood-covered will float in the blood" or "Bush blood-covered will float in the blood". Does this quatrain describe a general event or an event with a specific name? Is Nostradamus using a dual-meaning word to describe the specific name as well as the event?

Its not unusual for Nostradamus to use double-meaning words so that the quatrain becomes hard to interpret until the event happens and actual names are hidden in the guise of similar sounding words. For example everyone interpreted "Boristhenes premier" in III.95 as the river Dnieper until Boris Yeltsin became the President of Russia. The deft use of the words might have indicated the person and the place at the same stroke. The rest of that quatrain seemed to indicate the fall of communism and rise of capitalism in Russia quite clearly. Similarly, in this case too we cannot discount the possibility that Nostradamus actually hints at a destructive tornado and to the assassination or attempted assassination of President Bush and this quatrain might indicate a great danger to the life of the President in the near future.