Dogwuf = prepositions that always take the Accusative Case in German (durch, ohne, gegen, wider, um, fuer).
"Old opticians occasionally trot triumphantly about fairs auctioning glass vases and hydrangeas" = the sequence of the cranial nerves I - XII (Olfactory....to....Hypoglossal). Sometimes these kind of mnemonics seem harder to remember than the subject itself, but in this case, I've never forgotten those old opticians, learned for O Level Human Biology 35 years ago !