Voodoo Doughnut 

Like a regular doughnut, but it's also a sexual euphemism.

I just got a voodoo doughnut from the babysitter. I hope she doesn't want one in return.

Voodoo Doughnut by Fony Gname December 14, 2007

Voodoo Doughnuts 

One of the things Portland, Oregon is known for. They are located at 22 SW 3rd Avenue("just south of the Burnside Bridge") and at 1501 NE Davis Street. Two of their most known doughnuts are the Bacon Maple and the Cock-n-balls. A few others are the Portland Creme, the Dirty Old Bastard, and the Voodoo Doughnut.
Commonly referred to as simply "Voodoo"
If, at a concert, a band is not actually from Portland, they will likely say something about Voodoo(as in the example).
Their slogan is "The magic is in the hole".
Random fact: at the 1501 NE Davis Street location, on top of the doughnut display case, there is a copy of "Harry Potter and the Half-Blood Prince"

Jack Barakat: I had the Cock-n-balls doughnut at Voodoo! It was awesome!

Oregonian: Have you been to Voodoo Doughnuts?
Washingtonian: No, sounds lame.
Oregonian: ... We're going to Voodoo... NOW

Voodoo Doughnuts by PtownIsAwesome-NothingPersonal January 18, 2011