Repouche(re-poush-ay) is saying you saw it\did it\liked it first. Like dibs, or shotgun, except it means you already knew that, or did that, or liked it, etc. first. It means you are the first.
Frank Hardy: "I got to level 90 on MW3 yesterday."
Joe Hardy: "Repouche."
or
Shawn: "Gus, they are giving away double drumsticks at KFC! Just GIVING them away!"
When someone (mostly a celebrity) is photographed and then the photo is retouched so that the model is almost unrecognizable in a very good way, you say that they have hired Mariah's retoucher
"They have hiredMariah's retoucher for that magazinecover"
When someone acts out and apologizes afterwards reclaiming the right to be called a nice guy and then acts like a douché again.
Sally proclaimed that she was going to move out without giving notice for the second time. She explained her need to grow up and then redouché'd herself by refusing to pay rent.
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.