In which the fugu is winning.
For those who don't know, "fugu" is a delicacy in Japan made from pufferfish (a.k.a. blowfish). But the specific species of pufferfish used for fugu is also extremely poisonous. Only extremely masterful chefs who have special licenses can prepare fugu dishes. Because otherwise the poison is enough to kill you; although fugu deaths are very, very rare. In order to prepare fugu you have to go through some extremely rigorous training.
But it seems Winslow's love of fish has once again landed him in some hot water as eating just a bit of bad fugu has caused some incredible pains. Thankfully he's a vampire so the fugu's poisoning can't really kill him. But it'll make him bloat like crazy! It's why his belly is purpling, it's all the pufferfish poison in him.
Poor Winslow, but hey look on the bright side - he can sue that chef for millions. Hopefully that'll soften the blow of turning into a giant poison balloon publicly.