When a friend puts on a ridiculous amount of weight in a short space of time, giving them an extra layer of fat around the thighs, belly, hips and tits that "wobbles" as it moves, movement is especially erratic during running, the wobble being abbreviated to wobs.
"Hey did you see Liam the other night, he's been on some crazy diet of cheeseburgers, fries and boiled eggs, but he never hits the gym. He's got the wobs now."
When Penelope and Tarquin were glamping at the Boomtown festival they made sure to get the wobs in.
It's the main currency used at that particular event.