move fast and break things
Build a lot of sh*t without concern for what or why ... or who it might impact.
Facebook's mantra for many years. It was meant to encourage employees to launch new features that might not be perfect. Speed over perfection.
Zuckerberg updated the phrase in 2014 when it became apparent that launching software with a lot of bugs didn't actually lead to speed since eventually they needed to go back and fix the bugs.
The new mantra is "move fast with stable infra". Which, as a catch phrase, leaves much to be desired. And has not prevented the company from breaking things (see 2016 elections).