In Dragon Ball Super, there is a Saiyan form called Super Saiyan God Super Saiyan or SSGSS. It's a mouthful! Surely, there has to be an easier way to say this. Now, there is.
A Super Saiyan God Super Saiyan is when a Saiyan gets the power of a Super Saiyan God and then becomes a Super Saiyan. The result is Super Saiyan God Super Saiyan (スーパー サイヤ人 ゴッド スーパー サイヤ人).
In Japanese, the form with its blue hair was revealed in the movie Dragon Ball Z: Resurrection F and caused quite a stir at the time.
But the name Super Saiyan God Super Saiyan is just goofy. Thankfully, in the most recent Dragon Ball Super manga, the form gets a new name that's much easier to say: Super Saiyan Blue.
— まつさん (@you_bet_11) October 21, 2015
Via Saiyan Island, here's the manga transcript:
Vegeta: "Hahaha! That's just what I was hoping for! Obviously if we're both Super Saiyan God Super Saiyans, then as an elite I'll definitely be superior!!"
Goku: "No way, my Super Saiyan God Super...Ow!!! I bit my tongue!!!"
Goku: "Hey Vegeta, can't we do something about that long name?"
Whis drops down
Whis: "How about...Super Saiyan Blue?"
The manga's narration also refers to the form as Super Saiyan Blue. Again, via Saiyan Island:
Narration: "In fact, a little while before this, the terrible emperor Freeza who had previously terrorised the universe came back to life and attacked Earth. However, after meeting Beerus and Whis, Goku and Vegeta received training from Whis, managing to evolve into Super Saiyan Blue, a form surpassing Super Saiyan God. And so they even managed to defeat the revived Freeza!"
Goodbye Super Saiyan God Super Saiyan, hello Super Saiyan Blue!
In case you missed it, check out Kotaku's review of Dragon Ball Z: Resurrection F.
Top image via Dragon Ball Wikia