Oasis
An inn in the desert.
Letter O
Odor (foot)
A sign of health.
More from Letter O
Obscenity
All scientific words derived from Greek and Latin conceal an obscenity.
Octogenarian
Applies to any elderly man.
Odalisques
All women in the Orient are odalisques. (See Bayaderes.)
Odeon
Joke about its remoteness.
Offenbach
On hearing his name, hold two fingers of the right hand close together, to preserve yourself from the evil eye; it looks very fashionable and Parisian.