When you leave a situation or place thinking you are finished, but as you are leaving you realized you have not. So you begrudgingly return to finish the job.
Example 1: "Son of a shit! I stashed the weapon and washed my hands of their blood before we left, but I forgot to feed their cat since it'll now go hungry. Be right back..."
Example 2: <Walking away from the bathroom after cleaning up and you suddenly exclaim> "Son of a shit! I feel a smaller one peckin'. Need to get back to the john and finish dropping off the kids."
A particularly irritating, frustrating or otherwise offensive piece of equipment, esp. when poorly designed, dilapidated, malfunctioning, or breaking down.
"That's the third time this week I've had to adjust the check valve on the boiler. If that son-of-a-bitching piece of shit leaks one more time, I'm calling the god damned plumber!"
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.