Up and Down
Getting the ball into the hole in just two shots from off the green, one chip (or pitch) plus one putt.
The name is literally descriptive, not a hidden reference to anything: you get the ball "up" onto the green with your approach or chip, then "down" into the hole with the putt that follows, both halves have to work for it to count.
More short game & putting terms
Flop Shot
A very high, soft-landing short shot played with an open, lofted clubface, usually over an obstacle with little green to work with.
Bump and Run
A low, running chip shot that carries a short distance in the air and rolls the rest of the way to the hole, like a putt.
Chili Dip
Slang for an extreme chunked chip that barely moves the ball at all, essentially just a bad case of the fat chip.
Lag Putt
A long putt played primarily for distance control, aiming to leave a short, easy second putt rather than trying to make it.
Breaking Putt
A putt that travels on a curved line due to slope, rather than straight at the hole.
Reading the Green
The process of studying a putt's slope, grain, and speed before hitting it, to figure out the line.