Sentence:  Facebook's unencumbered, efficient, agile, <WSD>hackerish</WSD> style is to make everything seem ‘easy' – and when you need, in one of Zuckerberg's favourite phrases, to ‘move fast and break things', you just shrug. 
Meaning of the word marked with <WSD> tags:  Resembling or characteristic of a hacker (technically skilled computer enthusiast).