What more do you want, jam on it?

What more do you want, jam on it?

A rhetorical question indicating one's belief that what has been provided is sufficient or generous, and that requests for something additional or superior are ungrateful or greedy. We provided the client everything they requested, plus a few bonus features, but now they're asking for some add-ons. What more do they want, jam on it?See also: jam, more, on, what