The Name Flash, or Rack, or Climbing Gear

Lisa is 31 when she meets mark through jane and their other friends. They get to know one another on climbing week ends. She's not the judgmental type, yo plo, so it doesn't put her off. In fact, he's a bit of a cockney geezer from a working class background. He implies his money came from a slightly dodgy past. And they've got another more disparaging name for his gear, or rack, as they call it. I'm not sure if i'm allowed to swear, no, ye, go for it.