After a loss in sports, skills, a bet, or fantasy football, somebody gushes about how gracious they are in the loss and how they're so happy for the other person that won; they shower them with praise for just having their ass kicked.
Dutch got his butt spanked by Oooohhh yet again; even before he was done losing, he sent out a congratulatory text; what a flufferloser move.
Flufferkncukle is a made-up word from the kids book, "Pottymouth And Stoopid". Pottymouth made the word and he uses it as a replacement for the "f-word".