They probably started ironic. They're not anymore.
  1. Yumz.
  2. Yumtown.
    Sometimes I get into specific locations. A Double-Double? Central Yumtown. Paleo cinnamon bread? That formerly blighted area of North Yumtown that now has a wine bar in it. Etc.
  3. That's what's up.
  4. Oh, word?
  5. Word.
  6. Don't even trip.
    In work emails. All the time.
  7. Golly.