The Steers and Queers line is used in both "An Officer and a Gentleman" and in "Full Metal Jacket."
In "Full Metal Jacket," Gunnery Sergeant Hartman uses the line on Private Cowboy, from Texas.
In "An Officer and a Gentleman," Gunnery Sergeant Foley first uses the line on a character, portrayed by David Keith, from Oklahoma. Then, at the end of the movie, Richard Gere passes by Sgt. Foley using the same line on a new recruit from Arizona.
All three states can be considered valid for the line.
"only steers and queers come from Texas private cowboy, and you don't much look like a steer to me so that kinda narrows it down" Full MetalJacket 1987
While our lifespan is the number of years we will live, our healthspan is the number of healthy years we will have and our sexspan is is the number of years we will continue to be healthy enough to continue having an active sex life.
A lighthearted reaction upon receiving disappointing news of some sort. Usually something that isn't a particularly a big deal, esp. when it primarily affects someone else - sort of a mild schadenfreude. Sometimes doubled or tripled, and possibly said in a sing-songy voice for added comedic effect to imitate a muted trumpet, which is how the meme originated.