To eat or consume something quickly and aggressively. This is done in a way comparable to how your girlfriend eats her way through an entire bucket of popcorn at a movie theater before the trailers are even finished. Popcorning is a common practice in American buffets.
"I popcorned my schizo pills while choobering my water"
"His family loves my cooking. He's popcorning a third serving of the hotdish and they still wants more."
Chugging or otherwise rapidly consuming a liquid in an impressive show of skill and dominance. The more faster and more casually you can choober something, the cooler it is.
"I almost choked while I was choobering my Kool-Aid. I thought I was going to drown."