Since when did "vape" become a common word?! Its ascendance in popularity - to the extent that it's just been named Word Of The Year by Oxford Dictionaries - has completely passed me by. "Slacktivism", on the other hand, would certainly have been worthy of the award. As for "indyref", is that not more of a hashtag term that became popular in very specific circumstances and is destined to disappear?
Rival dictionaries Chambers and Collins have chosen "overshare" and "photobomb" respectively. Surely the latter is so 2012?