Well, as a Buffalonian, I have to label that video as garbage.
If you want to eat a flat, you do what BadNick stated above:
1) Grab one end
2) Insert in mouth
3) Use teeth and tongue to remove meat as you slowly withdraw the flat from your mouth
4) Once out of the mouth, inspect flat for meat scraps
5) Gnaw off meat scraps, along with delicious cartilage
6) Discard bone in bucket, on plate, on ground, in friend's lap, etc.
7) Repeat until wings are gone or you explode
I skip the dipping part because I just cannot stand blue cheese and blue cheese dressing. Tastes like what I would imagine a grave would taste like.
Also, WTF was he dipping? Parmesan?!?! There are only a few "true" options:
1) Traditional blue cheese dressing.
2) Hot wings
3) Extra how wings
4) Suicidal wings
Anything else is just a crime against the laws of nature
Typing all of this has made me miss Duff's wings. I'll need to schedule myself a visit now for some suicides, a bowl of fries, and a big 'ol glass of Loganberry!