mcbloated Share definition Flag The feeling of being extremely bloated and/or gassy after eating large quantities of food from McDonalds. Most likely whilst high or drunk. "Dude, I'm so mcbloated after all those mcdoubles and mcfrench fries with mcranch dressing." mcbloated by cheesefairy90210 August 22, 2012 Get the mcbloated mug.