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]
(..) I... Yeah. Welcome to New York. Go and fuck a dick. Fuck. So, all I ask is that you give me a little bit of time to gain your trust. I know that I'm new at this, but what I lack in experience I make up for in cliches. So, my door is always open. But seriously, my door is always open. (..)2011 Friends with Benefits