Suggestions are welcome!
  1. Flatulence
    Poetic-sounding - Have you not read John Keats' "The Flatulences of the Heart"?
  2. Bank
    Sounds cool and edgy. Bang + Punk = Bank
  3. Adultery
    Something grown-ups do? Well, maybe.
  4. Instantaneously
    Should be inst'
  5. Sexagenarian
    Terribly misleading!
  6. Conspicuous
    Has always sounded like it should mean inconspicuous, to me.
    Suggested by @juliapierpont