Landscape architecture-speak that makes me wince internally:
-materiality (and sticking -ality on the end of random words, i.e. functionality)
-organic nature (i.e. I'm really loving the organic nature of this curve. It has real dynamic flow.)
-architectonics (a meaningless word--is it even a word?--that is used in place of the word 'architectural,' a perfectly fine word)
List to be added to as it grows (and I grill my classmates for additions)...