They called it a comet, 'for lack of' a better term/word. [=because they could not think of a better term/word for it]
His honesty, or 'lack thereof', is the real problem. [=the real problem is his lack of honesty]
There was 'no lack of' interest in the proposal. [=there was much interest in the proposal]
(..) My father's very ill. I think we best stay put. All right. All right. With considerable effort and lack of sleep, I've managed to massage events to inspire Hector to head to town a week early. Oh, and I've also punched up the speech he gives (..)2016 TvShow: Westworld Title: The Original Season: 1 Episode 1