Am I the only one who always felt more comfortable with saying "happy holidays" because even the most myopic members of the old monoculture tend to make a big deal about New Year's Eve around the same time? That's how it felt to me at school. At bare minimum, holiday break had to include Christmas and New Year's Eve. Two holidays. And I wasn't even aware of the added American emphasis on Thanksgiving, which gets lumped in with those two in the States. Even if you outlaw all other religious observances for the whole winter, you're still celebrating multiple holidays. It's even in that carol! "And a happy new year!" But no one's going to add a whole extra clause after "merry Christmas" in casual speech to convey that. "Happy holidays" does the job with minimal effort. It's the verbal equivalent of a turducken. It's just had weaker marketing.
Turducken versus chimera! Who wins?
The obvious choice is the chimera. However, its only traditional component animal with significant aquatic capability is a snake, which only forms the tail. And it's usually the head of the snake that does it. In the case of the turducken, that middle element, justly honoured by the inclusion of its full name in the portmanteau, might be enough to bring out a win if its opponent can be lured into the water.