What does "rail back and kick it" mean in the extract below? GILBERT HOUSE JENNA: I picked up dinner. Tacos. I had an urge for guacamole. JEREMY: No, I'm good, thanks. JENNA: Eat anyway. It's a ruse. I want to talk. [Jeremy starts to leave.] JENNA: Hey, you! Come. Sit. Back in school, freshman year, I could eat my weight in nachos, with extra cheese. It was my munchie food whenever I got stoned. JEREMY: You get high? JENNA: Did. Past tense. But, yeah. Loved it. Anything to get a little distraction from life. . .reality. And it worked. For a while. Never lasts, though. Hey, I'm not saying I wouldn't love to rail back and kick it, but with a thesis looming and a waistline expanding. . . [Jeremy gets up and leaves when Jenna isn't looking. Jenna notices and she sighs.]