shmup [shmuhp] noun
1. Slang. A term for a "shoot 'em up" video game, such as Galaga or Gradius, that typically involve the player moving a ship or other object on a vertically or horizontally scrolling plane.
EX. This week, coming in hotter than a fresh dog turd on the sidewalk, is a new Jontron covering a wide gamut of weird and whacky Japanese shmup titles. What is your favorite shmup?