ab

ab off

slang To rappel down from a mountain-climbing route. "Ab" is a shortening of "abseil," a largely British term meaning "rappel." Primarily heard in UK. The climb itself is very challenging and fun, but there's nothing to do once you reach the top, so I usually just ab off straight away when I finish the climb.
See also: ab, off

abe

A five-dollar bill (which features a picture of Abraham Lincoln). We were pretty disappointed when Dad only gave us a few abes for cleaning out the whole garage.

uno ab alto

A slogan of the US Air Force. This Latin phrase translates to "one from on high." Since its inception, the Air Force has used a variety of slogans, including "uno ab alto."
See also: ab, uno
Farlex Dictionary of Idioms.

abe

n. a five-dollar bill. (From the picture of Abraham Lincoln on the bill.) This wine cost three abes. It had better be good.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • ab off
  • ABS
  • rap down
  • reg
  • prostie
  • prosties
  • the Fed
  • et seq.
  • cig
  • ad out