It means that which is:
• totally ecstatically wondrous, to the zenith
• endlessly joyfully amazing, and beyond
• full-on orgasmically blissful, to the nth degree
The TV shows Castle and Firefly are so intense, they are TRATW. (Triple Rainbow, All The Way)."
The movie Serenity is so vivid, it's TRATW! (Triple Rainbow, All The Way!)
Nathan Fillion is so awesomely spectacular, sexyhotmessgorgeous, and brilliantly talented, his fame is sweeping across the nation, and over all the world! Nathan Fillion is full on Double Rainbow, even Triple Rainbow, All The Way!