SOMEONEOUTSIDE THEIR LEAGUE WHEN IT COMES TO CHASING WOMEN.
NOT KNOWING WHAT TO DO WHEN HE CATCH'S HER.
(PETER)....YOU WERE OUT LAST NIGHT TRYING TO CHAT UP THAT BLONDE AT THE PUB (JOHN)....YEAH! HE IS LIKE A DOG CHASING A TRUCK,WOULDN'T KNOW WHAT TO DO WHEN HE CATCHES HER.
(PETER)....GET FUCKED CUNT..
.
To do something with excessive relish and gusto in the manner of a dog playing with one of those cheapplastic soccer balls which has suffered its inevitable puncture.
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.