This one's not even slang, but I always find it funny when I don't know what the kids are talking about, and then when I do find out, how salty I feel for not knowing.
After school yesterday, a few kids stuck around to present their oral exams.
Two hours after all their friends had left, this group finished and was heading out. "Thanks for staying and doing this," I said, "instead of leaving when everyone else did."
"That's OK," one girl said. "All our friends are just getting fat at OCB."
"OCB?" I asked.
"Yeah, a big group of them went there after school today," she said.
"But what's OCB?"
"Old Country Buffet."