Whoopee

David's Stunfisk (Japanese: Deividdo's Maggyo), nicknamed Whoopee, was captured after an accidental encounter while David chased after an Emolga and stepped on him. Stunfisk shocked David and he defeated the Stunfisk in battle with his Tepig, and caught it. It's easily one of his favorite Pokemon, and a signature for him, as when it is stepped on, it makes a farting-like noise. He often uses his Stunfisk (not usually the brightest creature) as a whoopee cushion prank against his friends.

History
David was rushing through Route 1 alongside his friends in an attempt to catch an Emolga, and ended up stepping on this particular Stunfisk, causing it to shock David. David tumbled to the ground laughing, and sent out his Tepig to battle it, defeating and catching it. Stunfisk loves water, as seen when it flopped around in the spa at Accumula Town. Stunfisk is a popular choice for David, especially to stop other creatures or people from fleeing the area by acting as a makeshift landmine.