MY SPNERS!!!! HELP IS NEEDED!!!

Shapeshifter Dean changing in Skin.
The man becoming a rugaru in Metamorphosis.
The maggot sandwich in Malleus Maleficarum.
The ghouls snacking on Sam in Jump the Shark.
Any blood-sucking Sam scene.
The okami going thru the woodchipper in Weekend at Bobby's.
Zach making Sam, Dean, and Adam spit up blood in Point of No Return.
The scarecrow in Scarecrow. (You didn't say fugly scenes, but I thought it fit. :)

the first thing I can think of is that creepy-ass girl in "Family Remains" - she scares the crap outta me! xD
and um..... ....

OMG - your making my mind blank!!!! x)

definitely the opening of "My bloody valentine" in season 5 with the couple eating each other .. gross x)
mm..bloody mary? the woman in white in the pilot,the guy who get's the "big fork" or what ever it was through his neck and out of his mouth in "bad day at black rock" the shapeshifter changing his form in "Skin"..jesus christ there are so many =P hope that's help a little
EDIT: oh I just remembered one more..when the old guy rips of Sam's fingernail in "A very supernatural christmas" ! fudging disgusting!

Those scenes with Doc. Benton.
Hmm, maybe Jack in Metamorphosis when he started eating Travis...

what season are you up to? season 6 ep 3 is a good one, malleus mallificariun with the maggots in season 3

How about Skin when the shapeshifter dean is changing again that was gross and plus u get to see dean topless thats a bonus!!

The guy who gets impaled on the saw in 'The Kids Are Alright'