Boxing day. Got dentures?

They are Phinx and Feitan on a Christmas card I gave to a friend of mine (who's Jewish but she didn't mind). This picture goes along with a poem I wrote:
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They didn't believe in Christmas.
The Ryodan never had,
But they took this excuse for a party.
Even Phinx wasn't as mad.

Everyone had too much egg nog.
(In Ubo's case this was a LOT.)
Which is why he brought up Santa,
And this is the reply he got:

"Ubo, you dumbass!" said Feitan,
"You know no Santa exists."
So both stayed up all night for proof
After Ubo fought Nobu with fists...
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The pictured scene is before Feitan relizes he stayed up on the 25th rather than the 24th and therefore hasn't proved anything.