I came in to say the blinds edits but I also voted for the Becky G curse, #ATRLGuests and "If popstars were..." because they all gave me some serious kiis this past year
And for what it's worth, the Chanteuse craze was easily the most irritating thing this forum has bred in 2014. By far.
PYS
The ____ Chanteuse/C*nteuse
TICON
The Kats vs. The Swifties
Blinds
If pop girls were ____
Surprise releases (though Beyonce's impact wasn't exclusive to just ATRL; U2, D'Angelo, Kid Cudi, etc )