With Knobs On Meaning

(idiomatic, Britain) Embellished.

Example: 1984, Anne Jamieson, Alan Glanz, Susanne MacGregor, Dealing with drug misuse: crisis intervention in the city,
  And although starting to talk about problem drug takers and demedicalization, when it came to talking about services, it fell back on the old medically dominated system, what Roger Lewis described as 'clinics with knobs on'.