A burning smell, especially one of burning plastic, could be caused by an electrical short and should be taken care of immediately. (myimprov.com)
The truffle oil had broken down into some foul smelling synthetic components, but that shit SOLD OUT because people love taste of burnt plastic so long as you tell them it has truffles. (uglyfoodtastesbetter.com)
As the cauliflower was roasting in the oven and I was busy preparing the other vegetables, the smell of burnt plastic started oozing through the kitchen. (greenkitchenstories.com)