back burner, on a

on the back burner

Of a low priority; given less or little thought or attention; postponed or suspended. I think that painting the house should be on the back burner until we decide on what furniture we want to buy. I'm going to be putting work stuff on the back burner for a while after my son is born.
See also: back, burner, on

back burner, on a

In a position of low priority. For example, I haven't forgotten his letter; I've just put it on a back burner for now. This term alludes to a cook's putting items requiring less attention at the back of the stove. [Colloquial; mid-1900s] Also see front burner.
See also: back, on