a sometime thing

a sometime thing

An activity that one participates or engages in infrequently, sporadically, or in a limited capacity. With two kids at home, my career in finance has had to take priority, with writing only being a sometime thing. Ever since the power plant shut down, work in this part of the country has become kind of a sometime thing.
See also: sometime, thing

something thing, a

Something occasional or transient, as in For most free-lance musicians, work is a sometime thing. This idiom gained currency in the title of a song by George Gershwin, "A Woman Is A Sometime Thing" (1935), introduced in the folk opera Porgy and Bess.
See also: something