In 1984, the publishing house 自由国民社(みんしゃじゆうこく) announced the 新語(しんご)・流行語大賞(たいしょうりゅうこうご) (“New word and Buzzword winners”). Since then a ceremony is held annually awarding the year’s top 流行語.
At that time, the 流行語 were mostly originated in recent news or television and radio programs such as the word “オシンドローム” from the TV series and novel “おしん”. Throughout time, the variety of public media has changed.
Today, ads like Line or other online services like YouTube are an equally common source. For example, the popular smartphone game “ポケモンGO” is one of the possible nominees for 2016.