League of Legends - Word of the year?

Title. Bad english included (sorry). It's a question of interest. I want to hear the opinion of the community which word characterized this year/season best.

Requirements:

• Obviously, it has to do with the year 2015.
• "Word" is not really defined as word. To make your favorite event/release/etc. clear, you can use more words. Example: "Smite Ezreal Mid" Let us say...5 words maximum.

Nominated words (I am open for suggestions):

• RIP Deathfire Grasp
• Smite Ezreal Mid
• Mordekaiser ADC
• Mana Potion
• DJ Sona
• Champion Mastery
• PROJECT
• Bilgewater
• Poppy Rework
• Minion Block (frigginmurlocs)
• NA 0-10 (frigginmurlocs)
• Harrowing when / Harrowing 5th November (frigginmurlocs)
• Mordekaiser, the Mordekaiser (frigginmurlocs)

If we have enough examples, I could add an additional thread with a poll. :)

EDIT: Word of the Year 2013: Windwall