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]
(..) or a general surgeon. I think what you're feeling is perfectly valid and maybe a little bit later when you're feeling a little less... for lack of a better word-- violated, maybe we can talk about this some more. - Stay away from me. - Sure, that's another way to go. Penny, Penny! (..)2007 TvShow: The Big Bang Theory Title: The Big Bran Hypothesis Season: 1 Episode 2