He hints that he may have invited another couple he bumped into at a bar at Karen and may have put his foot in it because the are not quite top drawer—a war reporter and his photographette, his moll, fresh in from Rwanda. She is slightly angry only because of the way he mentions the female, the moll, in that dismissive, can't-stand-the-sight-of-her voice men use when they are trying to disguise the hots.
Source: wiktionary