To be duboised is to have someone scam you out of money promising the delivery of goods or services and never delivering, most specifically in the field of interior design. Occasionally, an act of Dubois could be an inferior good delivered to what was promised.
Damn yo, you've been duboised. I told you that trick ass ho of a designer was going to steal yo money. Those lawn chairs were on Kmart.com not pottery barn.
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.