with (brass) knobs on idiom UK
尤其突出;还不止于此;有过之而无不及
If you describe something as a particular thing with knobs on, you mean it has similar qualities to that thing but they are more extreme.
Disney World was like an ordinary amusement park with knobs on. 迪斯尼乐园简直就是个超级娱乐公园。