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]
(..) JUDGE: Taking into account the gravity of these crimes your history of bold and elusive behavior and your complete lack of respect for the laws of the United States I have no choice but to ignore your request (..)2002 Catch Me If You Can