μολων λαβε Literally translates as "Having come, take".  Usually translated the way you posted, or simply "Come and get it" for clarity sake.  Something about Greek not needing an explicit object in a transitive imperative ("it" or "them" in this case). Pretty sweet reply either way. Here's a pronunciation guide for those folks who want to throw this term around: https://www.youtube.com/watch?v=m5phB4TVLjI&feature=youtu.be