The ability to think quickly. Often associated with humor.

sending two texts in a row without a reply inbetween.

Smart sense of humour, quick and abrupt.

To have smarts/be smart, but usually not in a knowing calculus at the age of 6 smart, but just being aware and making smart choices. Mostly known for "Keep your wits about you." quote from several films,games and media that date back in the days(medieval etc). Meaning just keep your head up and be smart about what you do, be careful.

A quality that few here possess.

Short for "with". See wit.

With.