Tell me your secret or I'll play The DAAAAH! DILALALILILWAWAWAWAWA!!!! Song!
—WaDaaBaaPingPumby
WaDaaBaaPingPumby is evil, like other Teletubbies, but horrific too! It is a Wa version of DaaBaaPingPumby that is messed up! He takes one of the Tiddlytubbies, chosen randomly, and traps them, forcing them to tell him his secret or he'll play Bite Me, or, as to him, "The DAAAAH! DILALALILILWAWAWAWAWA!!!! Song," as it is basically Weird Al screaming at the top of his lungs.
After the Tiddlytubbies tell their secret, they're free, but if tortured, they'll die in shock. We still don't know if he's an impostor or not, though this could be a misconception. He even fights "crime" with WaPoDipLaWinky. Oh, and by the way, he tastes like a Switch cartridge.
Teletubbies