Is someone gave you a luxury Yacht but you had to name it right now what would you name it?

I'll name it stallion.

"Yachta-Sea 1", "Yachta, Yachta", "Yachtasy" (like Odyssey), "All For Yacht"

I would name it "For Sale".  That hole in the water cost about $900K to $1.5M to buy  while that "gift" would require a crew, fuel, food, insurance, docking fees, etc...  All the while the boat will be rotting in the sun and need frequent and expensive repairs including periodic dry docking if it is has fiberglass hull.

I would give it my wife's name with II (two) following.

I’d name it “Aurora” after the little known second boat of the infamous Shackleton expedition.  Many crew of the Aurora gave their lives setting caches for the cross continental Shackleton crew that would never come.   

You should Google it.   It’s an amazing story.  

I wouldn’t name it 

My brother in laws family has a large houseboat on Lake Powell in Utah. I have gone with them on vacation on it a couple of times. They call it "Chicken of the Seas"

Ephemeris.        

The name if this guy who keeps asking if I have a yacht to sell him. So yeah, somebody gave me one, I'd name it after him. He gets a yacht and I get lots o money.