CATCH/GET DRIFT (понять намек)

― Yeah, the guy, well, uh ... He was medium build, about six feet, dark hair. ― That’s him. ― Yeah, well, I can’t tell you his name, but, uh, he’d been poppin’ in and out the past couple of weeks. Always when the coast was clear, if you catch my drift. ― Yes, I’m-I’m still catching it.